User:Intersets/Categories

Abstract

Prefixes used to indicate direction, movement, position, temporal relation, etc.

Basis

Prefixes categorized as Basis, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
actino-2	actin-2, actino-2	Radial geometry, radial symmetry.	e.g. actinogonidial, actinostele, actinomorphic	Abstract	Basis
axi-	axi-	Relating to the axis.	e.g. axi-symmetric	Abstract	Basis
basi-	bas-, basi-, baso-	Base, basis.	example(s) from: basolateral	Abstract	Basis
choro-	choro-	Place.		Abstract	Basis
dromo-	dromo-	Movement.	example(s) from: dromotropic, syndrome	Abstract	Basis
etio-	aetio-, eti-, etio-	Cause, causation.		Abstract	Basis
horo-	horo-	Time.		Abstract	Basis
hyper-5	hyper-5	Existing in more than three spatial dimensions.	e.g. hyperspace	Abstract	Basis
kine-	kine-, kinesio-, kineto-	Movement, motion.	example(s) from: akinetopsia, kinesthesia	Abstract	Basis
kinesi-	kinesi-	Movement, especially the movement of human body parts.		Abstract	Basis
loc-	loc-	Place, location.		Abstract	Basis
morpho-	morph-, morpho-	Shape, form, morphology.	example(s) from: morphology	Abstract	Basis
plas-	plas-, plaso-	Formation, development, structure.		Abstract	Basis
posito-	posito-	Placement, arrangement, positioning.		Abstract	Basis
qual-	qual-	Quality.		Abstract	Basis
quant-	quant-	Quantity.		Abstract	Basis
radio-4	radi-4, radio-4	Radius.	e.g. radiosymmetrical	Abstract	Basis
regio-	regio-	Region, regional geography.		Abstract	Basis
spatio-	spatio-	Spatial. space.		Abstract	Basis
stereo-1	stereo-1	Three-dimensional.	e.g. stereophonic	Abstract	Basis
sticho-	sticho-	Rows.		Abstract	Basis
taxo-1	tax-1, taxi-1, taxo-1	A system of classification, order, arrangement.		Abstract	Basis
topo-	top-, topo-	Place, area or region.	example(s) from: w:Topical anesthetic	Abstract	Basis
zono-	zono-	Zone; zonal.		Abstract	Basis

Chemical structures

Prefixes categorized as Chemical structures, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
meta-05	met-05, meta-05	(organic chemistry) In isomeric benzene derivatives, having the two substituents in alternate (1,3) positions; From 1833.		Abstract	Chemical structures
per-6	per-6	(chemistry) Added to the name of an element in a polyatomic ion to denote the number of atoms of that element (usually four).		Abstract	Chemical structures
thre-	thre-, threo-	Pertaining to general organic structures with adjacent chiral centers.		Abstract	Chemical structures

Completion

Prefixes categorized as Completion, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-07	a-07	(archaic, dialectal) In the act or process of. Used in some dialects before a present participle.		Abstract	Completion
a-10	a-10	Forming words with the sense of wholly, or utterly out.	e.g. abash	Abstract	Completion
a-12	a-12	Towards; Used to indicate direction, reduction to, increase to, change into, or motion.	e.g. ascend, aspire, amass, abandon, avenue	Abstract	Completion
acro-04	acr-04, acro-04, akro-04	Beginning, initial.	e.g. acrophony, acronym, acrography	Abstract	Completion
ad-1	ad-1	(no longer productive) Doing, enacting, forming a verb.	e.g. accouple, admarginate, admixture, attune	Abstract	Completion
apo-15	ap-15, aph-15, apo-15	To carry forth, to do.	e.g. approportionate, apoplexy, apotheosis	Abstract	Completion
atelo-	atel-, atelo-	Incomplete; unfinished; defective. (a- + telo-).	example(s) from : atelocardia	Abstract	Completion	Sufficiency		<	Incomplete
be-7	be-7	All around; about; abundantly; all over.	e.g. belave, belick, bescatter, bekiss	Abstract	Completion
be-8	be-8	Forming verbs derived from nouns or adjectives, usually with the sense of "to make, become, or cause to be".	e.g. becalm, bedark, befree, befriend, bedim, beken, benight, benothing, bewet, besmooth, bestrange	Abstract	Completion
con-07	col-07, com-07, con-07, cor-07	To do the suffix.	e.g. convivify, confix, constrict	Abstract	Completion
dys-08	dis-4, dys-08	To fail.	e.g. dysautoregulation	Abstract	Completion
en-4	el-4, em-4, en-4	To become.	e.g. enslave, embetter, engloom	Abstract	Completion
enter-1	enter-1	In the process of, in between.	e.g. entermewer, enterclose	Abstract	Completion
fix-1	fix-1	To repair, fix.		Abstract	Completion
for-02	for-02, fore-19	Exhausting: prefixed to verbs with the sense of wearing or exhausting one's self.	e.g. forsing, forwander, fortravel	Abstract	Completion
for-03	for-03, fore-19	Destructively: prefixed to verbs with the sense of destruction or pain.	e.g. forhang, forthink, fordo	Abstract	Completion
in-4	il-4, im-4, in-4, ir4	Doing, forming verbs.	e.g. inbland, inblind, incloister	Abstract	Completion
mis-2	mis-2	To fail or failure.	e.g. miscarriage, misacknowledge	Abstract	Completion
non-2	non-2	Absence, lack of.	e.g. nonaccountability, nonacceleration, nonaction	Abstract	Completion	Possession		<
out-6	out-6	Completely.	e.g. outfit, outwork	Abstract	Completion
pan-02	pan-02, pano-02	Every member of a countable set.	e.g. pancarditis, panophthalmitis, panplegia	Abstract	Completion
per-2	per-2	(non-productive) In verbs: denoting the sense "thoroughly".	e.g. perfect	Abstract	Completion
proto-1	prot-1, proto-1	Primitive, early, undeveloped.	e.g. protophysics, protometal, protoword	Abstract	Completion
pur-2	pur-2	Completion or completeness.	e.g. purchase, purblind	Abstract	Completion
re-2	re-2	Completion; updated, anew.	example(s) from: reletter, relead, rebronze	Abstract	Completion
semi-2	semi-2	partial, incomplete.		Abstract	Completion	Sufficiency
term-	term-	To limit, end.		Abstract	Completion
thorough-2	thorough-2	Fully, completely.	e.g. thoroughgoingly, thoroughbreed, thoroughpaced	Abstract	Completion
to-03	to-03	Completely.	e.g. tobruise, toreave, torob, toshend	Abstract	Completion
under-2	under-2	To progress along a path (metaphorical).	e.g. understand, undergo, underbear, undertake	Abstract	Completion

Conceptual

Prefixes categorized as Conceptual, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
meta-09	met-09, meta-09	Having analogies with metaphysics.		Abstract	Conceptual

Equality

Prefixes categorized as Equality, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
abro-2	abro-2	Dainty, unstable, not fixed.	e.g. abrosexual	Abstract	Equality	Change	Increasing?	≠
ana-7	ana-7	To grow or change in place; functionally similar.	e.g. anabranch, anagenesis, anagen	Abstract	Equality	Change		>	Semi-similar
muta-	muta-	Mutation, change.		Abstract	Equality	Change		≠	! Change
up-1	up-1	Increase.	e.g. uprate	Abstract	Equality	Change	Increasing?	>	Increase

Influences

Prefixes used to indicate reciprocal vs one-way relationships, controlling/resulting

Prefixes categorized as Influences, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-16	a-16	(Chester) Used as a prefix to verbs in the sense of remaining in the same condition. Actively doing something.	e.g. a-be, Let that choilt a-be	Abstract	Influences	Change		=
ad-7	ad-7	Modifying.	e.g. adnominal, adverb, assoil	Abstract	Influences	Change
after-4	after-4	With prepositional effect, forming compound words denoting follows and is a result of the second element of the compound.	examples from : afterbirth, afterlife, afternoon	Abstract	Influences				Consequent
allo-10	allo-10	Changed or modified.	e.g. allohistorical, alloplasm, allobar	Abstract	Influences	Change
apo-07	ap-07, aph-07, apo-07	Disjoint, separate.	e.g. apocarpous, aposepalous, apopetalous	Abstract	Influences
be-4	be-4	On, upon, at, to, in contact with something.	e.g. beclothe, becall, besee, behold, befall, bedo, beshine, besmile, betone	Abstract	Influences				Touch
bi-04	bi-04, bin-04, bis-04	Being different in two ways with respect to the suffix.	e.g. biadjoint, biaffine, biclonal	Abstract	Influences				Different
co-01	co-01	Jointly: the suffix is done in coordination between multiple actors or entities.	e.g. coadoption, coadapt, coanalysis	Abstract	Influences		Actors?	∨	Together
co-03	co-03	Mutually: the suffix is done in a way that is reciprocal and bidirectional.	e.g. coadherence, coattraction, coannihilate	Abstract	Influences		Actors?	=	Mutual
co-06	co-06	In conjunction: the suffix needs another entity to take effect, or there is a one-way interaction between them.	e.g. coantioxidant, codepletion, comedication	Abstract	Influences		Actors?	<	One-way
con-02	col-02, com-02, con-02, cor-02	Together: the suffixed entity is done together.	e.g. conarticular, conjubilant, consubsistence	Abstract	Influences			∨	Together
con-11	col-11, com-11, con-11, cor-11	When one entity is put into another, or one entity affects the other.	e.g. conplastic, converb	Abstract	Influences			<	One-way
con-12	col-12, com-12, con-12, cor-12	Mutuality, indicating a reciprocal relationship or influence.	e.g. confraternization, confated, connascence	Abstract	Influences			=	Mutual
cross-08	cross-08	More than one, often in indicating applicability to several domains that are usually separate.	e.g.crosslingual, cross-browser, crossfunctional, cross-cultural	Abstract	Influences			>	Multiple
cross-10	cross-10	Comparing two sources of information, often to verify their contents.	e.g. crossdate, crossvalidated, crosscovariance	Abstract	Influences	Change	Fixing
cross-12	cross-12	Mutual exchange or influence, where both entities are affected in the same way. Mutuality.	e.g. crosstalk, crossrepression, crosscalibration, cross-progress	Abstract	Influences			=	Mutual
cross-13	cross-13	One entity affecting a similar entity, such as to transfer of one property from one entity to the other.	e.g. crossregulation, crossfeed, crossprotection	Abstract	Influences			∨	One-way
eigen-	eigen-	Remaining unchanged by linear transformations; eigenvector, eigenvalues, etc.		Abstract	Influences	Change		=	= Unchanged
en-5	el-5, em-5, en-5	Provide with.	e.g. empower	Abstract	Influences				Transferal
epi-04	epi-04	Secondary: a consequence, by-product, additional, or lesser version.	e.g. epilanguage, epiphenomenon, epitoxoid	Abstract	Influences				Consequent
epi-20	epi-20	Mapping onto, passing along, resolving to.	e.g. epimorphism, episememe	Abstract	Influences				Transferal
for-07	for-07	Making: prefixed to verbs to indicate the subject takes the character of the verb.	e.g. fordote, forguilt	Abstract	Influences
hapto-2	hapto-2	Touch, touching.		Abstract	Influences				Touch
hetero-08	heter-08, hetero-08	(transplantation) Outside, xeno-.	e.g. heterogenetic, heterocephaly, heterodiegetic	Abstract	Influences
inter-08	inter-08	Mutually: the suffixed verb or property has a symmetric and bidirectional relationship between the relevant parties.	e.g. interlegible, interattraction, intercalibrate	Abstract	Influences			=	Mutual
inter-13	inter-13	Intersocially: the suffixed verb is done between or among social entities; also forming nouns and adjectives derived from the verb form.	e.g. interact, intermarry, intergern	Abstract	Influences			∨	Together
inter-15	inter-15	Transferable: the suffixed entity is or can be transferred between multiple locales.	e.g. interavailable, intermural	Abstract	Influences				Transferal
inter-19	inter-19	Cooperating: to connect multiple social entities of the type indicated by the suffix.	e.g. interlaboratory, interservice, interliner	Abstract	Influences			∨	Joining
inter-23	inter-23	Universal or independent of the suffixed social groups or time periods.	e.g. intermicronational, international, intercurrent	Abstract	Influences			≠	Independent
inter-24	inter-24	Communal: a kind of the suffix which is shared among people.	e.g. interlanguage, interexperience, interownership	Abstract	Influences				Shared
intra-07	intra-07	Between two or more similar entities that are within a larger entity. The suffix indicates the commonality between the entities.	e.g. intrachiral, intraploidy, intra-allelic	Abstract	Influences
meta-11	met-11, meta-11	(pathology) Consequent on.		Abstract	Influences				Consequent
ortho-03	orth-03, ortho-03	To correct or fix.	e.g. orthophotography, orthoptics, orthodontics	Abstract	Influences		Fixing
ortho-10	orth-10, ortho-10	Independent, separate.	e.g. orthogonal, orthopair, orthogonal	Abstract	Influences
palpo-	palp-, palpo-	To gently touch.		Abstract	Influences				Touch
pan-06	pan-06, pano-06	Universal, everything, all that can be imagined.	e.g. pangeometry, panphobia, theopanism	Abstract	Influences
pan-10	pan-10, pano-10	Representing or covering a given social group.	e.g. Pan-Asian, pan-Palestinian, Pan-Anglican	Abstract	Influences
per-7	per-7	(non-productive) Denoting the sense "by" or par from French.	e.g. perchance, perhaps	Abstract	Influences
pro-2	pro-2	substituting for.		Abstract	Influences				Transferal
stat-	stat-	State, control.		Abstract	Influences				Control
thigmo-	thigmo-	Related to touching, usually a plant.	e.g. thigmokinesis, thigmotaxis	Abstract	Influences				Touch

Intensity

Prefixes categorized as Intensity, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
ad-4	ad-4	(no longer productive) Intensifying, additionally.	e.g. acclaim, adsignification, adspection	Abstract	Intensity
de-3	de-3	Intensifying.	e.g. defraud, denumerate, depauperize	Abstract	Intensity
sch-	sch-, sh-	Used to intensify a word, especially for comedic effect.		Abstract	Intensity
schm-	schm-, shm-	Used to intensify a word, especially for comedic effect.		Abstract	Intensity

Intention

Prefixes categorized as Intention, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
mis-3	mis-3	Unintentionally, accidentally, mistakenly.	e.g. misdeleted, mishap, mischance	Abstract	Intention				Intention
quer-	quer-, ques-	Seek, ask.		Abstract	Intention				Intention
teleo-	teleo-	Purpose, design, intent.	e.g. teleology, teleophobia, teleocracy	Abstract	Intention				Intention

Interrogation

Prefixes categorized as Interrogation, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
where-	where-	Which, what, whom.		Abstract	Interrogation

Landmarks

Prefixes categorized as Landmarks, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
coelo-1	cele-1, celo-1, coel-1, coelo-1, cœlo-1	Hollow, cavity.		Abstract	Landmarks
fistulo-	fistulo-	Connection, passage, hollow.		Abstract	Landmarks
stigmato-	stigmato-	Mark, point.		Abstract	Landmarks

Layers

Prefixes categorized as Layers, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
lamino-	lamino-	A thin layer.		Abstract	Layers
strati-	strati-	Layer.		Abstract	Layers
strato-1	strato-1	Strata.		Abstract	Layers				Layer

Linking

Prefixes categorized as Linking, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
hetero-04	heter-04, hetero-04	Across, spanning multiple distinct kinds of the suffix, different.	e.g. heterochrome, heterocladic, heteroexchange, heterocoordination	Abstract	Linking
inter-11	inter-11	Internally: the suffix verb is done in between or among relevant entities; also formining nouns and adjectives derived from the verb form.	e.g. intershine, interdistinguish, interreflection	Abstract	Linking
intra-06	intra-06	Indicating that the suffixed entry is internal in nature.	e.g. intramarry, intranet	Abstract	Linking

Mass

Prefixes categorized as Mass, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
baro-	bar-, baro-, bary-	Pressure, heaviness.		Abstract	Mass
dasy-2	dasy-2	Dense.		Abstract	Mass				Dense
gravi-	gravi-	Weight.		Abstract	Mass
levi-	levi-	To lighten, to make less heavy.		Abstract	Mass
piezo-	piezo-	Pressure.		Abstract	Mass
pycno-	pycno-, pykno-	Dense, compact.	example(s) from: pyknosis	Abstract	Mass
visco-	visco-	Viscous.		Abstract	Mass

Motion

Prefixes categorized as Motion, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aplano-	aplano-	Non-mobile, fixed.	e.g. aplanospore	Abstract	Motion
dino-3	dino-3	Whirling; rotation or dizziness.	e.g. dinic, scotodinia	Abstract	Motion
flexo-	flexo-	To bend, flexion, flexure.		Abstract	Motion
migra-	migra-	Migration, wandering.		Abstract	Motion
palpiot-	palpit-, palpito-	Flutter, throb.		Abstract	Motion
porta-	porta-	Portable, movable.		Abstract	Motion
puls-	puls-, pulsato-, pulso-	To beat, to pulse.		Abstract	Motion
rheo-	rheo-	Current, flow.		Abstract	Motion
roto-	roto-	Rotation, turn.		Abstract	Motion
systol-	systol-	Contraction.		Abstract	Motion
tetan-	tetan-	Rigid, tense.	example(s) from: tetanus	Abstract	Motion
to-04	to-04	Moving.	e.g. tolug, towind	Abstract	Motion
tor-	tor-, tors-, tort-, torti-	To twist. Twisted.	example(s) from: w:Torticollis, w:Testicular torsion	Abstract	Motion
vibro-	vibro-	Vibration, oscillation, shaking.		Abstract	Motion
volt-	volt-	Circular tread, sudden movement.		Abstract	Motion

Negation

Prefixes categorized as Negation, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-11	a-11	Not, without, opposite of.	e.g. amoral, asymmetry, atheism, asexual, acyclic, atypical	Abstract	Negation
anti-2	ant-2, anti-2	Counteracting, neutralizing.	e.g. antiaircraft, antifreeze, antibacterial	Abstract	Negation
co-15	co-15	(mathematics) Dual or complement.	e.g. coaltitude, colatitude, cocategory, coarea	Abstract	Negation
dis-1	di-5, dis-1	Not, the reverse of. (Especially forming words with a negative connotation).	e.g. disagree, disconnect, dissatisfied, disinterested, dishonour	Abstract	Negation
dys-11	dis-4, dys-11	not.	e.g. dysfluent	Abstract	Negation
in-6	ig-6, il-6, im-6, in-6, ir6	(non-productive) Added to adjectives to mean not.	e.g. inedible	Abstract	Negation
nega-	nega-	Negative.		Abstract	Negation
non-1	non-1	Not.	e.g. nonaboriginal, nonabrasive, nonabstract	Abstract	Negation
ob-1	ob-1, os-1	Inverse, reverse, particularly in shape.	e.g. obclavate, obconic, obcordate	Abstract	Negation
un-1	un-1	Not.	e.g. uneducated, unknown, unklocked	Abstract	Negation
with-2	with-2	Back, in reverse.	example(s) from: withstand, withhold	Abstract	Negation

Normality

Prefixes used to indicate normal/abnormal, ordinary/extraordinary, regular/irregular

Prefixes categorized as Normality, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allo-09	allo-09	Unconventional, unusual, or unexpected.	e.g. allophone, alloparent, allophane	Abstract	Normality
anti-3	ant-3, anti-3	The opposite of what is typically expected.	e.g. antihero, anticlimax, antichess	Abstract	Normality				Abnormal
arch-3	arch-3, archa-3, arche-3, archi-3, archo-3	(augmentative) Intensely, extremely, or exceptionally.	e.g. archfool, archracist, archnationalist	Abstract	Normality				Augmentative
be-6	be-6	As an intensifier; i.e. thoroughly, excessively; completely; utterly.	e.g. bebreak, begladden, belabour, behate, bedazzle	Abstract	Normality				Intensifying
coen-	coen-, coeno-, cœn-, cœno-	Common.		Abstract	Normality				Normal
con-08	col-08, com-08, con-08, cor-08	Intensifying the suffix.	e.g. congenial, connatural, convicinity	Abstract	Normality				Intensifying
dis-3	di-5, dis-3	Used as an intensifier.	e.g. disembowel, disannul	Abstract	Normality				Intensifying
dys-07	dis-4, dys-07	abnormal.	e.g. dysgnathic, dysafferentation, dysesthesia	Abstract	Normality				Abnormal
en-6	el-6, em-6, en-6	An intensifier.	e.g. entangle, enwisen	Abstract	Normality				Intensifying
for-06	for-06	Very: intensifying adjectives.	e.g. forblack, forswollen	Abstract	Normality
for-08	for-08	Excessively: prefixed to verbs with the sense of doing so in excessive or overwhelm.	e.g. forwax, forgrow, forhare	Abstract	Normality
for-10	for-10	Intensively.	e.g. forbeat, fordread, forlay	Abstract	Normality
haplo-5	aplo-5, haplo-5	(soil science) Haplic: soil that is typical of its kind.	e.g. haploperox, haploxeralf, haploxeroll	Abstract	Normality				Normal
hetero-10	heter-10, hetero-10	Inconsistent, irregular, or intermittent.	e.g. heterochylia, heterodynamic, heterochronic	Abstract	Normality
hyper-4	hyper-4	Augmentative: intensely, extremely, or exceptional.	example(s) from: hyperthermia	Abstract	Normality				Augmentative
macro-4	macr-4, macro-4	(augmentative) intensely, extremely, or exceptional.		Abstract	Normality				Intensifying
meso-08	mes-08, meso-08	Normal, average, or typical.	e.g. mesochronic, mesocrystal, mesokurtosis	Abstract	Normality				Normal
norm-	norm-, normo-2	Normal.	example(s) from: normocapnia	Abstract	Normality				Normal
ortho-05	orth-05, ortho-05	Normal, ordinary.	e.g. orthocclusion, orthodromic, orthogravitropism	Abstract	Normality				Normal
over-5	over-5	Augmentative: exceptional; extremely or intensely.	example(s) from: overreact, overact, overbearing	Abstract	Normality				Augmentative
pan-11	pan-11, pano-11	Ubiquitous, widespread. The suffix indicates what is widespread rather than the area in which it is widespread.	e.g. panallergen, pannecrosis	Abstract	Normality
para-12	par-12, para-12	Abnormal.	e.g. paralgesia	Abstract	Normality				Abnormal
per-4	per-4	(non-productive) In adjectives and adverbs: denoting the sense "extremely".	e.g. perfervid	Abstract	Normality				Intensifying
super-8	super-8	Augmentative: intensely, extremely, or exceptional.	e.g. superblizzard, superbright, supersharp	Abstract	Normality				Augmentative
supra-3	supra-3	Augmentative: intensely, extremely, or exceptional.	e.g. suprahuman, supramassive	Abstract	Normality				Augmentative
to-02	to-02	To do excessively.	e.g. tobeat, topinch, toquake, toruffle	Abstract	Normality				Intensifying
uber-	uber-, über-	Augmentative: super; really; mega-.	e.g. uberdork, ubergeek	Abstract	Normality				Augmentative
ultra-4	ultra-4	Augmentative: intensely, extremely, or exceptional. Excessively, to an extreme.	example(s) from: ultramicroscopic, ultra-careful	Abstract	Normality				Augmentative

Openness

Prefixes categorized as Openness, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
be-9	be-9	(archaic or informal) Used to intensify adjectives meaning "adorned with something", often those with the suffix -ed.	e.g. besequined, befeathered, beclawed, bewebbed, betasseled, beloved	Abstract	Openness	Possession	Uncovered?	<	Covering
claustro-	claustro-	Enclosed space.		Abstract	Openness		Uncovered?	.	Covered
crypto-	crypt-, crypto-	Hidden, secret.	example(s) from: cryptography	Abstract	Openness	Secret	Uncovered?	.	Covered
en-3	el-3, em-3, en-3	covered by.	e.g. enclothe, embalm, enseam	Abstract	Openness		Uncovered?	.	Covered
epi-17	epi-17	Covering: the suffix is covered.	e.g. epiglottis, epispore, episcope	Abstract	Openness		Uncovered?	.	Covered
gymno-	gymno-	Naked.		Abstract	Openness		Uncovered?	∞	Naked
hypho-	hypho-	A relatively open boron structure.		Abstract	Openness	Chemical	Uncovered?	>	Open
klado-	klado-	A very open boron structure.		Abstract	Openness	Chemical	Uncovered?	>>	Open
libre-	libre-	Free, particularly open source.		Abstract	Openness	Restriction	Uncovered?	∞	Free
nudi-	nudi-	Naked.		Abstract	Openness		Uncovered?	∞	Naked
over-4	over-4	Surrounding or covering.	e.g. overcoat, overpaint	Abstract	Openness		Uncovered?	<	Covering
para-05	par-05, para-05	Covering.	e.g. paracolpitis	Abstract	Openness		Uncovered?	<	Covering
pheno-1	phaeno-, phen-1, pheno-1, phæno-	Displaying, showing.		Abstract	Openness	Visible	Uncovered?	>	Open
stego-	stego-	Covered, hidden.		Abstract	Openness	Secret	Uncovered?	<	Covering

Parenthood

Prefixes categorized as Parenthood, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allo-05	allo-05	(genetics) Hybridization of multiple species.	e.g. allohaploid, allopolyploid, allohexaploid	Abstract	Parenthood
apo-11	ap-11, aph-11, apo-11	(organic chemisty) Derived from, or related to.	e.g. apoharmine, apocodeine, apomorphine	Abstract	Parenthood
co-11	co-11	Indicating a family relationship that indicates a common rank made through three degrees of separation, the middle of which is by marriage.	e.g. co-sister, co-parent-in-law	Abstract	Parenthood
co-20	co-20	(chemistry) Deriving from multiple sources.	e.g. copolymer, cointercalation, coconformation	Abstract	Parenthood	Internal			Multiple
fore-18	for-13, fore-18	Ancestor, ancestral.	e.g. forebear, forefather, fore-elder	Abstract	Parenthood
god-	god-	Godfamily relations.		Abstract	Parenthood
grand-	grand-	Family relation that is one generation removed from original noun (e.g. grandfather).		Abstract	Parenthood
great-	great-	Family relation that is one generation removed from original noun (e.g. great-uncle).		Abstract	Parenthood
nor-	nor-	Organic compound that is the parent of another.		Abstract	Parenthood
proto-5	prot-5, proto-5	Most recent common ancestor (often hypothetical) of.	e.g. Proto-Indo-European, Proto-Germanic	Abstract	Parenthood
step-	step-	Related via marriage of parent.	example(s) from: stepbrother, stepmother, stepfather, stepsister	Abstract	Parenthood

Regarding

Prefixes categorized as Regarding, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
be-3	be-3	About, regarding, concerning, over.	e.g. bewrite, betalk, betell, belie, bemoan, bemourn, bewail, beknow, besing, bespeak	Abstract	Regarding

Routing

Prefixes categorized as Routing, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allo-06	allo-06	(chemistry) Isomeric; especially, of amino acids having two chiral centres, the second diastereoisomer to be discovered or synthesized.	e.g. allolactose, allocholane, allobetulin	Abstract	Routing
clado-	clado-	A branch, or branching.		Abstract	Routing
hyper-6	hyper-6	Linked non-sequentially.	e.g. hypertext	Abstract	Routing
isthmo-	isthm-, isthmo-	Having or involving an isthmus.		Abstract	Routing
non-3	non-3	Avoiding.	e.g. nonabiding, nonacceptance, nonaccumulative	Abstract	Routing
para-16	par-16, para-16	Avoiding or avoidant.	e.g. parenteral, paraconsistent	Abstract	Routing
reticulo-	reticul-, reticulo-	Reticulated, network, mesh.	example(s) from: reticulocyte	Abstract	Routing
sequ-1	sequ-1	A sequence.		Abstract	Routing

Scope

Prefixes categorized as Scope, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
co-16	co-16	Having multiple targets or effects; the suffix affects or involves multiple subjects.	e.g. coaccused, coaccumulation, coadsorption	Abstract	Scope			>
inter-21	inter-21	Involving multiple of the suffix.	e.g. interdisciplinary, intermodal, intergenetic	Abstract	Scope			>
pan-01	pan-01, pano-01	All, referring to all, of all.	e.g. panenteroviral, Panhellenic, panneural, panphilia	Abstract	Scope			∞

Similarity

Prefixes used to indicate same/different, variety/uniformity

Prefixes categorized as Similarity, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-02	a-02	Forming verbs with the sense of intensified action.	e.g. abide, amaze	Abstract	Similarity
allo-07	allo-07	Different, distinct, or other with respect to the root.	e.g. allosome, allonym, allocolonial	Abstract	Similarity			≠	! Different
allo-13	allo-13	(linguistics) Alternative, variant in form.	e.g. allophony, allocher, allograph	Abstract	Similarity			≠	! Different
alt-	alt-	Alternative.		Abstract	Similarity			≠	! Different
an-	a-3, an-	Not.	e.g. anacidic, anhedral	Abstract	Similarity			≠	! Different
anti-5	ant-5, anti-5	A rival or counterpart to.	e.g. antipope, Antichrist	Abstract	Similarity
apo-08	ap-08, aph-08, apo-08	Different, distinct.	e.g. apomedication, apomorph	Abstract	Similarity			≠	! Different
co-09	co-09	Having commonality, similarity with respect to the suffix.	e.g. coaxial, cobelligerent, coaltitude	Abstract	Similarity			=	= Similar
co-13	co-13	(mathematics) Homomorphic with respect to the suffix.	e.g. cocharacter, cofree, cohyponormal	Abstract	Similarity			=	= Similar
con-03	col-03, com-03, con-03, cor-03	Having commonality, having the same property indicated by the suffix.	e.g. confocal, consimilar, conterminant	Abstract	Similarity			=	= Similar
cross-14	cross-14	Alternate, different.	e.g. cross-tune, cross-birth, cross-live	Abstract	Similarity			≠	! Different
dif-	dif-	Apart, separation.	example(s) from: different	Abstract	Similarity
doppel-	doppel-	Indicating remarkable similarity to, or duplication of, the referenced person or object.		Abstract	Similarity			=	= Similar
enantio-	enantio-	Opposite.		Abstract	Similarity			≠	! Different
epi-26	epi-26	Similar, in the same form of, resembling.	e.g. epimorphic, epiascidiate, epicalyx	Abstract	Similarity			=	= Similar
even-3	even-3	(no longer productive) Prefix meaning equally, similarly, same.	e.g. evennight, evenmete, evenold	Abstract	Similarity			=	= Similar
intra-12	intra-12	In alignment or synchronous with the suffixed entity.	e.g. intrametric, intradirective	Abstract	Similarity		Aligned?	=	= Similar
like-	like-	Similar.		Abstract	Similarity			=	= Similar
meso-11	mes-11, meso-11	Quasi or partial.	e.g. mesocarnivore, mesobilirubin, mesoparasite	Abstract	Similarity
mono-2	mon-2, mono-2	Single, alone, limited.	e.g. monochrome, monopsony, monocity	Abstract	Similarity
ob-6	ob-6, os-6	Not quite, almost.	e.g. obdormition, obrotund	Abstract	Similarity
ortho-04	orth-04, ortho-04	Same, from the same.	e.g. orthocousin, cross-cousin, orthogamy	Abstract	Similarity			=	= Similar
other-	other-	Different, other, alternative.		Abstract	Similarity			≠	! Different
para-14	par-14, para-14	Resembling.	e.g. paramilitary, paramylum	Abstract	Similarity			=	= Similar
pene-	pen-, pene-	Almost.	e.g. peninsula, penultimate, penumbra	Abstract	Similarity
polymorpho-	polymorpho-	Polymorphous.		Abstract	Similarity
quasi-	quasi-	Like, similar.	example(s) from: quasi-religious	Abstract	Similarity			=	= Similar
same-	same-	Same, similar.		Abstract	Similarity			=	= Similar
semi-3	semi-3	somewhat, rather, quasi-.		Abstract	Similarity
simul-	simul-	Resembling, likeness.		Abstract	Similarity			=	= Similar
steno-1	sten-1, steno-1	Restricted, few, narrow in range (antonym: eury-).	e.g. stenobiomic, stenophagy, stenotherm	Abstract	Similarity
sub-3	sub-3, sur-3	Almost, nearly.	e.g. subconical, subequatorial	Abstract	Similarity			=	= Similar
syn-1	sy-1, syl-1, sym-1, syn-1, sys-1	Identical.	e.g. synonym	Abstract	Similarity		Identical?
tauto-	taut-, tauto-	The same, identical.		Abstract	Similarity		Identical?	=	= Similar
un-3	un-3	Contrary to traditional norms, unconventional.	e.g. unschooling, unconference	Abstract	Similarity			≠	! Different
xeno-	xen-1, xeno-	Foreign.	example(s) from: xenograft	Abstract	Similarity			≠	! Different

Specificity

Prefixes categorized as Specificity, Abstract.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
th-	th-	The.		Abstract	Specificity

Abstract: Correctness

Ability

Prefixes categorized as Ability, Abstract: Correctness.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
dys-01	dis-4, dys-01	difficult.	e.g. dyschezia, dysacusis, dysbasia, dyslexia, dyscopia	Abstract: Correctness	Ability	Restriction	Easy?	<	Difficult
dys-09	dis-4, dys-09	inability, unable.	e.g. dyscontrol, dysmetria	Abstract: Correctness	Ability	Restriction	Easy?	.	Unable
flexi-	flex-, flexi-	Flexible.		Abstract: Correctness	Ability	Restriction	Easy?	>	Easy
tenso-	tenso-	Stretched, strained.		Abstract: Correctness	Ability			<

Correctness

Prefixes used to indicate true/false, artificial/genuine.

Prefixes categorized as Correctness, Abstract: Correctness.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
abro-1	abro-1	Delicate, graceful., pretty.		Abstract: Correctness	Correctness		Beauty	=	= Beautiful
allo-08	allo-08	(pathology) Abnormal, defective with respect to the root.	e.g. allolalia, allochromasia, allorhythmia	Abstract: Correctness	Correctness		Goodness	≠	! Bad
allo-11	allo-11	(chemistry) Synthetic, artificial.	e.g. alloprotein, allopurinol	Abstract: Correctness	Correctness	Origin	Natural?	≠	! Artificial
allo-14	allo-14	(chemistry, mineralogy) Impure in composition.	e.g. allochromatic, allochromatic, allostratigraphy	Abstract: Correctness	Correctness	Uniformity	Purity	≠	! Impure
arch-2	arch-2, archa-2, arche-2, archi-2, archo-2	Leading, foremost, primary, or principal; best at.	e.g. archantagonist, archmodernist, archcompetitor	Abstract: Correctness	Correctness		Goodness	>	> Best
bene-	bene-	Good, well.		Abstract: Correctness	Correctness		Goodness	=	= Good
caco-	caco-	Bad.		Abstract: Correctness	Correctness		Goodness	≠	! Bad
calli-	calli-	Beautiful.		Abstract: Correctness	Correctness		Beauty	=	= Good
con-15	col-15, com-15, con-15, cor-15	constructed, artificial, hypothetical, fictional.	e.g. conlang, conworld, conculture	Abstract: Correctness	Correctness	Origin	Natural?	≠	! Artificial
dys-02	dis-4, dys-02	bad.	e.g. dysphoria, dystopia	Abstract: Correctness	Correctness		Goodness	≠	! Bad
dys-05	dis-4, dys-05	incorrect.	e.g. dysbalanced, dyschloremia, dysdifferentiation	Abstract: Correctness	Correctness		Truth	≠	! False
eu-1	eu-1	Good, well.		Abstract: Correctness	Correctness		Goodness	=	= Good
eu-2	eu-2	Easily. true.		Abstract: Correctness	Correctness		Truth	=	= True
for-04	for-04, fore-19	Wrongly: prefixed to verbs with the sense of wrongly, amorally.	e.g. forteach, forswear, forworship, forlead, forlive	Abstract: Correctness	Correctness		Goodness	≠	! Bad
franken-	Franken-, franken-	Indicating artificiality or a combination of disparate elements, often terrifying or unattractive; often denoting a GMO ("genetically modified organism") product.		Abstract: Correctness	Correctness	Origin	Natural?	≠	! Artificial
ill-	ill-	Bad, wrong.		Abstract: Correctness	Correctness		Goodness	≠	! Bad
mal-	mal-, male-2	Bad, faulty. not. abnormal. inadequate.	example(s) from: malnourish, maladjusted	Abstract: Correctness	Correctness		Goodness	≠	! Bad
megalo-2	meg-21, mega-21, megal-2, megalo-2	Grand, great.	e.g. megalography, megalomania	Abstract: Correctness	Correctness		Goodness	=	= Good
mis-1	mis-1	Bad or wrong, badly or wrongly.	e.g. misbehave, misaccumulation	Abstract: Correctness	Correctness		Goodness	≠	! Bad
mis-4	mis-4	False, falsely.	e.g. misaccusation	Abstract: Correctness	Correctness		Truth	≠	! False
ortho-02	orth-02, ortho-02	Proper, righteous.	e.g. orthorexia, orthotaxon, orthology	Abstract: Correctness	Correctness		Goodness	=	= Good
ortho-17	orth-17, ortho-17	Pure.	e.g. orthoquartzite	Abstract: Correctness	Correctness	Uniformity	Purity	=	= Pure
para-13	par-13, para-13	Incorrect, false.	e.g. paradiorthosis	Abstract: Correctness	Correctness		Truth	≠	! False
para-15	par-15, para-15	Unrecognized, unauthorized, or unsanctioned.	e.g. parastate, parabaptism	Abstract: Correctness	Correctness		Goodness	≠	! Bad
pseudo-1	pseud-1, pseudo-1	Not true, but appears like it is true.	e.g. pseudoallergy, pseudoallelism, pseudobenevolent	Abstract: Correctness	Correctness		Truth	≠	! False
tru-	tru-	True, Natural?.		Abstract: Correctness	Correctness		Natural?	=	= True
ver-	ver-	Truth, correct.		Abstract: Correctness	Correctness		Truth	=	= True
wan-	wan-	Bad, lacking.		Abstract: Correctness	Correctness	Sufficiency	Goodness	≠	! Bad

Goodness

Prefixes categorized as Goodness, Abstract: Correctness.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
ana-4	ana-4	Thoroughly.	e.g. anatomy, analysis	Abstract: Correctness	Goodness	Sufficiency	Enough?	=
apo-01	ap-01, aph-01, apo-01	Lacking, without, scant.	e.g. aponeurosis, apomeiosis, apogamy	Abstract: Correctness	Goodness	Sufficiency	Enough?	<
dys-06	dis-4, dys-06	poor, deficient.	e.g. dysgraphia, dysphasia, dysoxic	Abstract: Correctness	Goodness	Sufficiency	Enough?	<
for-05	for-05, fore-19	Neglectfully: prefixed to verbs with the sense of abstaining from or neglecting.	e.g. forslip, forslack	Abstract: Correctness	Goodness	Sufficiency	Enough?	<
hypo-2	hyp-2, hypo-2	Deficient; less than normal.	e.g. hypogonadism, hypothermia, hypoventilation	Abstract: Correctness	Goodness	Sufficiency	Enough?	<	Deficient
isch-	isch-	Insufficiency. Restriction, holding back.	example(s) from: ischemia	Abstract: Correctness	Goodness	Sufficiency	Enough?	<
un-2	un-2	Lack of.	e.g. unconformity, unemployed	Abstract: Correctness	Goodness	Sufficiency	Enough?	<
under-4	under-4	Deficient.	e.g. underapply, underbill, underawe	Abstract: Correctness	Goodness	Sufficiency	Enough?	<

Abstract: Metaphorical

Direction, metaphorical

Prefixes categorized as Direction, metaphorical, Abstract: Metaphorical.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-14	a-14	Of, from.	e.g. anew, afresh	Abstract: Metaphorical	Direction, metaphorical	Internal	To?	<	From
again-2	again-2	Against.	e.g. againsaw, againsay, againstand	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
ana-5	ana-5	Against.	e.g. anachronism, anamodernism, anatoxin	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
anti-1	ant-1, anti-1	Against, opposed to.	e.g. antiabortion, antiracism	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
apo-04	ap-04, aph-04, apo-04	Not, opposite.	e.g. apotracheal, apogeotropic	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Oppposition
apo-10	ap-10, aph-10, apo-10	From, coming from.	e.g. apology, apocrypha, apodeme	Abstract: Metaphorical	Direction, metaphorical	Internal	To?	<	From
con-10	col-10, com-10, con-10, cor-10	From, coming from the suffix.	e.g. consequence, convicine, connatal	Abstract: Metaphorical	Direction, metaphorical	Internal	To?	<	From
contra-	contra-, contre-, contro-	Against.	example(s) from: contradict, contraindication	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
counter-	counter-	In opposition to.	example(s) from: counteract, counterpart	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
cross-06	cross-06	Moving or acting against, opposing, contrary.	e.g. crossflow, cross-beat, cross-vote	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
de-4	de-4	From, off, derived from.	e.g. deverbal, deadjectival	Abstract: Metaphorical	Direction, metaphorical	Internal	To?	<	From
ex-1	ex-1	out of.	e.g. extract, expel, except, expression, exclusion	Abstract: Metaphorical	Direction, metaphorical	Internal	To?	<	From
gain-	gain-	Against, contrary to.	example(s) from: gainsay	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
neutro-	neutro-	Neutral, neither.		Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	.	Neutrality
non-4	non-4	Neutral.	e.g. nonaccent, nonacrocentric, nonaccent	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	.	Neutrality
ob-2	ob-2, os-2	Against.	e.g. object, oblatration	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
pro-1	pro-1	agreeing with; supporting; favouring.	e.g. pro-choice, prodifferentiation, probiotic	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	=	Support
thorough-1	thorough-1	Through, via.	e.g. thoroughfare, thoroughgo, thoroughlane	Abstract: Metaphorical	Direction, metaphorical		To?	∞
to-08	to-08	Of, as characteristic of the suffixed time period. Forming adverbs and adjectives.	e.g. today, together	Abstract: Metaphorical	Direction, metaphorical	Internal	To?	<	From
with-1	with-1	Against, in opposition to.	e.g. withstand, withsay, withspeak	Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition
wither-	wither-	Against.		Abstract: Metaphorical	Direction, metaphorical	Polarity	To?	≠	Opposition

Position, metaphorical

Prefixes categorized as Position, metaphorical, Abstract: Metaphorical.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allo-01	allo-01	(biology) Nonself; nonself but of the same species.	e.g. allogeneous, allorecognition, alloimmunity	Abstract: Metaphorical	Position, metaphorical	Self	Self?	≠	Is not
alter-	alter-	Other, different, changed.		Abstract: Metaphorical	Position, metaphorical	Equality		≠	! Different
auto-1	aut-1, auto-1	Regarding oneself.	example(s) from : autoimmune, autograph, autobiography	Abstract: Metaphorical	Position, metaphorical	Self	Self?	=	Is
de-1	de-1	Reversal, undoing.	e.g. decouple, de-ice, dehumidify	Abstract: Metaphorical	Position, metaphorical	Transcendence		≠
ego-1	ego-1	Self.		Abstract: Metaphorical	Position, metaphorical	Self	Self?	=	Is
epi-12	epi-12	Beyond, meta, transcending.	e.g. epimuscular, epilanguage, epitheory	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
hetero-06	heter-06, hetero-06	Other, by another, not auto-.	e.g. heteroadministered, heterobiography, heterocentric, heteroencapsidation	Abstract: Metaphorical	Position, metaphorical	Self	Self?	=	Is
hyper-2	hyper-2	Beyond.	e.g. hypersonic	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
idio-	idio-	Personal, own.	example(s) from: idiolect, idiopathic	Abstract: Metaphorical	Position, metaphorical	Self	Self?	=	Is
inter-01	inter-01	A position which is in between two (or more) of the kind indicated by the suffix.	e.g. interblog, intercausal, interexperiential	Abstract: Metaphorical	Position, metaphorical		Near?	=	Between
intra-04	intra-04	Behaviour of a single individual.	e.g. intrajudge, intradoctor, intraparticipant	Abstract: Metaphorical	Position, metaphorical	Self	Self?	=	Is
meta-07	met-07, meta-07	Transcending, encompassing.		Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
onto-	onto-	Existence, being.		Abstract: Metaphorical	Position, metaphorical	Transcendence		=
out-5	out-5	Beyond. (synonyms: trans-, para-, preter-).	e.g. outgrew	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
para-06	par-06, para-06	Adjacent, next to.	e.g. paracentral, paracaval	Abstract: Metaphorical	Position, metaphorical		Near?	>	Near
para-11	par-11, para-11	Beyond.	e.g. paradox, paranormal, paraclival	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
preter-	praeter-, preter-, præter-	Exceeding, beyond expectations.	e.g. preterlegal, preternature, preternormal	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
self-	self-	Self, ones own.	example(s) from: self-sufficient, self-explanatory	Abstract: Metaphorical	Position, metaphorical	Self	Self?	=	Is
sui-	sui-	Self, personal.		Abstract: Metaphorical	Position, metaphorical	Self	Self?	=	Is
super-3	super-3	Beyond, over, or upon.	e.g. supernatural, superhuman, supersonic	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
supra-2	supra-2	Greater than, transcending.	e.g. supralocal, supracultural, supracontext	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
trans-2	trans-2	To or on the other side of, beyond; outside of.	e.g. transalpine, transuranic	Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond
ulter-	ulter-	Beyond, farther.		Abstract: Metaphorical	Position, metaphorical	Transcendence	Bound?	<	Beyond

Size, metaphorical

Prefixes categorized as Size, metaphorical, Abstract: Metaphorical.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
macro-3	macr-3, macro-3	inclusive.	e.g. macroinstruction	Abstract: Metaphorical	Size, metaphorical	Inclusion	Inclusion?	∨	In
macro-5	macr-5, macro-5	Great in scope or scale, to analyse at a high level, or existing in such a frame of reference.	e.g. macrosociology, macroanatomy, macrobenthos	Abstract: Metaphorical	Size, metaphorical	Scope	Macro?	>	Macro
meso-02	mes-02, meso-02	Between a macro- scale and micro- scale in scope or analysis.	e.g. mesoeconomics, mesoevolution, mesometeorology	Abstract: Metaphorical	Size, metaphorical		Macro?	=	Meso
meta-08	met-08, meta-08	Pertaining to a level above or beyond; reflexive or recursive; about itself or about other things of the same type. For example, metadata is data that describes data, metalanguage is language that describes language, etc.		Abstract: Metaphorical	Size, metaphorical	Inclusion	Inclusion?	∧	Out
micro-3	micr-3, micro-3	Small in scope.	e.g. microsociology, micrometeorology, microeconomics	Abstract: Metaphorical	Size, metaphorical		Macro?	<	Micro
super-2	super-2	A more inclusive category.	e.g. supercategory, superfamily, superculture	Abstract: Metaphorical	Size, metaphorical	Inclusion	Inclusion?	∨	In

Abstract: Quantity

Absolute

Prefixes categorized as Absolute, Abstract: Quantity.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
hella-	hella-	A very large quantity.		Abstract: Quantity	Absolute		Much?	>	> Much
hyper-3	hyper-3	Excessive.	e.g. hyperactive	Abstract: Quantity	Absolute	Sufficiency	Much?	>>	>> Too much
hypo-3	hyp-3, hypo-3	Designating oxoacid and oxyanions with a low amount of oxygen. Antonym: per-.	e.g. hyposulphate	Abstract: Quantity	Absolute		Much?	<	< Not much
ichno-	ichn-, ichno-	Trace or trace amounts of something.		Abstract: Quantity	Absolute		Much?	<	< Not much
macro-6	macr-6, macro-6	Large in quantity.	e.g. macronutrient, macrodose	Abstract: Quantity	Absolute		Much?	>	> Much
mani-	mani-, many-	Many, multiple.		Abstract: Quantity	Absolute		Much?	>	> Much
meso-12	mes-12, meso-12	Moderate, medium in quantity.	e.g. mesoendemic, mesoeutrophic, mesohaline	Abstract: Quantity	Absolute		Much?	=	= Medium
multi-	multi-	Many.	example(s) from: multicultural, multi-storey, multitude	Abstract: Quantity	Absolute		Much?	>	> Much
olig-	olig-, oligo-	Few.	example(s) from: oligotrophy	Abstract: Quantity	Absolute		Much?	<	< Not much
over-3	over-3	Excessive, excessively.	e.g. overkind, overloud, overstate	Abstract: Quantity	Absolute	Sufficency	Much?	>>	>> Too much
pauci-	pauci-	Having or involving few.	e.g. paucisymptomatic, paucispiral	Abstract: Quantity	Absolute		Much?	<	< Not much
per-5	per-5	(chemistry) Forming nouns and adjectives denoting the maximum proportion of one element in a compound.	e.g. peroxide	Abstract: Quantity	Absolute	Proportion	More?	∞	>> Most
pluri-	pluri-	Several.		Abstract: Quantity	Absolute		Much?	>	> Much
poly-1	poly-1	many.	e.g. polydactyl, polyglot, polyvalent	Abstract: Quantity	Absolute		Much?	>	> Much
proto-6	prot-6, proto-6	A minimal proportion of a particular substance when in a combination.	e.g. protoxide, protosulfide, protiodide	Abstract: Quantity	Absolute	Proportion	More?	.	. Least
spano-	spano-	Scarce.		Abstract: Quantity	Absolute	Sufficiency	Much?	<	< Not much
super-5	super-5	Excessive; exceptionally large in quantity.	e.g. superphosphate, superhydration	Abstract: Quantity	Absolute	Sufficiency	Much?	>>	>> Too much

Numbers

Cardinal (1, 2, 3), ordinal (1st, 2nd, 3rd), multiples (twofold, threefold) numbers and factors (e.g. SI prefixes). Alt-Sort: the numbers.

Prefixes categorized as Numbers, Abstract: Quantity.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
apeiro-	apeiro-	Infinite.		Abstract: Quantity	Numbers		Cardinal		Infinite
atto-	atto-	10−18.		Abstract: Quantity	Numbers		Factors		10−18
bi-01	bi-01, bin-01, bis-01	Two in number.	e.g. biarticular, biaxial	Abstract: Quantity	Numbers		Cardinal		2
bi-05	bi-05, bin-05, bis-05	Forked, divided by two, halved; (chemistry, proscribed) half.	e.g. bifurcate, bicapitate, bicarinate	Abstract: Quantity	Numbers		Cardinal		0.5
bi-06	bi-06, bin-06, bis-06	Double, twofold.	e.g. bialgebroid, bifarious, biarticulated	Abstract: Quantity	Numbers		Multiplier		2
bi-09	bi-09, bin-09, bis-09	Twice.	e.g. biannual, biannual, biconjugate	Abstract: Quantity	Numbers		Multiplier		2
bi-10	bi-10, bin-10, bis-10	Every two.	e.g. biannual, bicentennial	Abstract: Quantity	Numbers		Multiplier		0.5
centi-	cent-, centi-	Hundred, one-hundredth. 10-2.		Abstract: Quantity	Numbers		Factors		10-2
chilia-	chilia-	Thousand.		Abstract: Quantity	Numbers		Factors		103
deca-	dec-, deca-, decakis-, deka-	Ten. 10.		Abstract: Quantity	Numbers		Cardinal		10
deci-	deci-	Tenth part. 10-1.		Abstract: Quantity	Numbers		Factors		10-1
demi-1	demi-1	Half.	example(s) from: demigod	Abstract: Quantity	Numbers		Cardinal		0.5
deutero-	deuter-, deutero-	Second (in the sense of next after the first).	example(s) from: deuteragonist, deuterogamy	Abstract: Quantity	Numbers		Ordinal		2
di-1	di-1	Two.	e.g. diacetate, dialkene, diarchy, diactinal	Abstract: Quantity	Numbers		Cardinal		2
di-2	di-2	Double, twice the quantity.	e.g. diglossia, dicatalectic, dichoree	Abstract: Quantity	Numbers		Multiplier		2
diphy-	diphy-	Double, twofold.		Abstract: Quantity	Numbers		Multiplier		2
diplo-	dipl-, diplo-	Double.	example(s) from: diploid, diplosis	Abstract: Quantity	Numbers		Multiplier		2
docosa-	docosa-	Twenty-two.		Abstract: Quantity	Numbers		Cardinal		22
dodeca-	dodec-, dodeca-, duodeca-	Twelve.		Abstract: Quantity	Numbers		Cardinal		12
duo-	du-, duo-	Two.	e.g. dual, duet	Abstract: Quantity	Numbers		Cardinal		2
duplicato-	duplicato-	Doubly.		Abstract: Quantity	Numbers		Multiplier		2
duplo-	duplo-	Double, twofold.		Abstract: Quantity	Numbers		Multiplier		2
dwi-	dwi-	A designation prefix for undiscovered chemical elements lying two periods under a known element in the periodic table.		Abstract: Quantity	Numbers		Ordinal		2
eka-	eka-	One.		Abstract: Quantity	Numbers		Cardinal		1
ennea-	ennea-	Nine.		Abstract: Quantity	Numbers		Cardinal		9
enneadeca-	enneadeca-	Nineteen.		Abstract: Quantity	Numbers		Cardinal		19
exa-	exa-	Quintillion. 1018.		Abstract: Quantity	Numbers		Factors		1018
exbi-	exbi-	260 = 1,0246.		Abstract: Quantity	Numbers		Factors		260
femto-	femto-	10-15.		Abstract: Quantity	Numbers		Factors		10-15
gibi-	gibi-	230.		Abstract: Quantity	Numbers		Factors		230
giga-	giga-	Billion, 109. 230.		Abstract: Quantity	Numbers		Factors		109
half-	half-	Half.		Abstract: Quantity	Numbers		Cardinal		0.5
haplo-2	aplo-2, haplo-2	Un-duplicating: where there was two identical copies, deleting the redundant copy. Analogy to haploid in genetics.	e.g. haplography, haplology, haplosegment	Abstract: Quantity	Numbers		Multiplier		0.5
hecto-	hecato-, hect-, hecto-	Hundred. 100.		Abstract: Quantity	Numbers		Cardinal		100
hectokilo-	hectokilo-	In the metric systems of units, multiplying the unit to which it is attached by 100,000. Symbol. hk.		Abstract: Quantity	Numbers		Factors		105
hemi-	hemi-	Half.	example(s) from: hemimorphic, hemisphere	Abstract: Quantity	Numbers		Cardinal		0.5
hendeca-	hendeca-	Eleven.		Abstract: Quantity	Numbers		Cardinal		11
hepta-	epta-, hept-, hepta-, heptakis-	Seven. seven atoms, seven groups.		Abstract: Quantity	Numbers		Cardinal		7
heptadeca-	heptadeca-	17.		Abstract: Quantity	Numbers		Cardinal		17
hexa-	hex-, hexa-, hexakis-	Six. six atoms, six groups.		Abstract: Quantity	Numbers		Cardinal		6
hexadeca-	hexadeca-	16.		Abstract: Quantity	Numbers		Cardinal		16
icosa-	eicosa-, icosa-, icosi-	20.		Abstract: Quantity	Numbers		Cardinal		20
kibi-	kibi-	210.		Abstract: Quantity	Numbers		Factors		210.
kilo-	kilo-	Thousand. 1,000. 210.		Abstract: Quantity	Numbers		Factors		103
mebi-	mebi-	220.		Abstract: Quantity	Numbers		Factors		220
mega-2	meg-2, mega-2	Million, 106. 220. 210 * 103. great, large.	e.g. megagram, megaton	Abstract: Quantity	Numbers		Factors		106
micro-2	micr-2, micro-2	10-6.	e.g. microgram, micrometre	Abstract: Quantity	Numbers		Factors		10-6
micromicro-	micromicro-	Pico- (in the names of SI units).		Abstract: Quantity	Numbers		Factors		10-12
milli-	milli-	10-3. thousand.	example(s) from: milliliter	Abstract: Quantity	Numbers		Factors		10-3
millimicro-	millimicro-	Nano- (in the names of SI units).		Abstract: Quantity	Numbers		Factors		10-9
millimilli-	millimilli-	Micro- (in the names of SI units).		Abstract: Quantity	Numbers		Factors		10-6
mono-1	mon-1, mono-1	One.	example(s) from: monogamy, monotone, monosyllabic, monomial, monobrow	Abstract: Quantity	Numbers		Cardinal		1
myria-	my-1, myri-, myria-, myrio-	Ten thousand. 10,000.	example(s) from: myriad	Abstract: Quantity	Numbers		Factors		104
nano-1	nan-1, nano-1	10-9.	example(s) from: nanogram, nanosecond	Abstract: Quantity	Numbers		Factors		10-9
nil-	nil-	Zero.		Abstract: Quantity	Numbers		Cardinal		0
nona-	non-5, nona-	Nine.		Abstract: Quantity	Numbers		Cardinal		9
nonadeca-	nonadeca-	19.		Abstract: Quantity	Numbers		Cardinal		19
nulli-	nulli-	Null.		Abstract: Quantity	Numbers		Cardinal		0
octa-	oct-, octa-, octakis-, octo-	Eight.		Abstract: Quantity	Numbers		Cardinal		8
octadeca-	octadeca-	Eighteen.		Abstract: Quantity	Numbers		Cardinal		18
pebi-	pebi-	250.		Abstract: Quantity	Numbers		Factors		250
penta-	pent-, penta-, pentakis-, penti-	Five.		Abstract: Quantity	Numbers		Cardinal		5
pentadeca-	pentadeca-	Fifteen.		Abstract: Quantity	Numbers		Cardinal		15
peta-	peta-	(United States of America) quadrillion, 1015. (Great Britain) septillion, 1024.		Abstract: Quantity	Numbers		Factors		1015
pico-	pico-	10-12.		Abstract: Quantity	Numbers		Factors		10-12
proto-3	prot-3, proto-3	First in order.	e.g. protogynous, protandrous	Abstract: Quantity	Numbers		Ordinal		1
quad-	quad-	Involving four elements.		Abstract: Quantity	Numbers		Cardinal		4
quadri-	quadr-, quadri-, quadro-, quadru-	Four.	example(s) from: quadrilateral, quadrinomial	Abstract: Quantity	Numbers		Cardinal		4
quarter-1	quarter-1	Fourth part.		Abstract: Quantity	Numbers		Ordinal		4
quarter-2	quarter-2	1/4.		Abstract: Quantity	Numbers		Cardinal		0.25
quecto-	quecto-	10-30.		Abstract: Quantity	Numbers		Factors		10-30
quetta-	quecca-, quetta-	1030.		Abstract: Quantity	Numbers		Factors		1030
quin-	quin-, quinqu-, quinque-	Five.		Abstract: Quantity	Numbers		Cardinal		5
ronna-	ronna-	1027.		Abstract: Quantity	Numbers		Factors		1027
ronto-	ronto-	10−27.		Abstract: Quantity	Numbers		Factors		10-27
sec-	sec-	secondary-form of a functional group, a branched functional group.		Abstract: Quantity	Numbers		Ordinal		2
semi-1	semi-1	half.		Abstract: Quantity	Numbers		Cardinal		0.5
sept-	sept-, septa-, septem-, septi-, septua-	Seven.		Abstract: Quantity	Numbers		Cardinal		7
sesqui-	sesqui-	3/2.		Abstract: Quantity	Numbers		Cardinal		1.5
sexa-	sex-, sexa-	Six.		Abstract: Quantity	Numbers		Cardinal		6
tebi-	tebi-	240.		Abstract: Quantity	Numbers		Factors		240
ter-	ter-	Three.		Abstract: Quantity	Numbers		Cardinal		3
tera-	tera-	Trillion, 1012.		Abstract: Quantity	Numbers		Factors		1012
tert-	tert-	Tertiary form.		Abstract: Quantity	Numbers		Ordinal		3
tetra-	tessara-, tetr-, tetra-, tetrakis-	Four.		Abstract: Quantity	Numbers		Cardinal		4
tetracosa-	tetracosa-	Twenty-four.		Abstract: Quantity	Numbers		Cardinal		24
tetradeca-	tetradeca-, tetrakaideca-, tetrakaideka-	Fourteen.		Abstract: Quantity	Numbers		Cardinal		14
tri-	tri-	Three.	example(s) from: tricycle, tripartite, triangle, tricolor, trinomial	Abstract: Quantity	Numbers		Cardinal		3
trideca-	trideca-, triskaideca-, triskaideka-	Thirteen.		Abstract: Quantity	Numbers		Cardinal		13
tris-	tris-	A variant of tri-, used for substitutions of three complex rather than simple units.		Abstract: Quantity	Numbers		Ordinal		3
trito-	trit-, trito-	Third.		Abstract: Quantity	Numbers		Ordinal		3
twi-1	twi-1	Two, having two.	e.g. twi-headed, twi-coloured, twifaced	Abstract: Quantity	Numbers		Cardinal		2
twi-2	twi-2	Second.	e.g. twilight, twichild, twifallow	Abstract: Quantity	Numbers		Ordinal		2
undeca-	undeca-	Eleven.		Abstract: Quantity	Numbers		Cardinal		11
uni-	uni-	One, single.	example(s) from: unicycle, universal	Abstract: Quantity	Numbers		Cardinal		1
vigen-	vigen-, viginti-	Twenty.		Abstract: Quantity	Numbers		Cardinal		20
yobi-	yobi-	280 = 1,0248.		Abstract: Quantity	Numbers		Factors		280
yocto-	yocto-	×10-24.		Abstract: Quantity	Numbers		Factors		10-24
yotta-	yotta-	×1024.		Abstract: Quantity	Numbers		Factors		1024
zebi-	zebi-	270 = 1,0247.		Abstract: Quantity	Numbers		Factors		270
zepto-	zepto-	×10-21.		Abstract: Quantity	Numbers		Factors		10-21
zetta-	zetta-	×1021.		Abstract: Quantity	Numbers		Factors		1021

Parity

Whether a number is even or odd. Altsort: the modulo (remainder), 0 for even, 1 for odd. Interestingly there do not appear to be prefixes for odd quantities other than to negate these (e.g. a'pari-).

Prefixes categorized as Parity, Abstract: Quantity.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
arti-	arti-, artio-	Even quantities .		Abstract: Quantity	Parity	Symmetry	Balanced?	=	Even
even-1	even-1	Even in number, not odd.	e.g. even-toed, even-numbered, w:Even-even nucleus	Abstract: Quantity	Parity	Symmetry	Balanced?	=	Even
pari-2	pari-2	Even in quantity.	e.g. paridigitate, paripinnate	Abstract: Quantity	Parity	Symmetry	Balanced?	=	Even
race-	rac-, race-	Denoting a racemic mix or racemate of enantiomers; equal quantities of.		Abstract: Quantity	Parity	Symmetry	Balanced?	=

Relative

Prefixes categorized as Relative, Abstract: Quantity.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aniso-1	aniso-1	Unequal.	example(s) from : anisocytosis, anisotropic	Abstract: Quantity	Relative	Equality	More?	≠	≠ Unequal
co-12	co-12	Equally, equal with respect to the suffix.	e.g. cointense, codominant, coextension	Abstract: Quantity	Relative	Equality	More?	=	= Equal
epi-11	epi-11	More, above a usual quantity, additional in quantity.	e.g. epicadmium, epidemic, epimenorrhagia	Abstract: Quantity	Relative	Equality	More?	>	> More
equ-	equ-	Equal; balanced; identical.		Abstract: Quantity	Relative	Equality	More?	=	= Equal
equi-	aequi-, equi-, æqui-	Equal, equally.		Abstract: Quantity	Relative	Equality	More?	=	= Equal
meio-	meio-	Less, fewer, reduction.	e.g. meiobenthos	Abstract: Quantity	Relative	Equality	More?	<	< Less
meta-04	met-04, meta-04	(chemistry) Having fewer molecules of water than the ortho- equivalent.		Abstract: Quantity	Relative	Equality	More?	<	< Less
pan-03	pan-03, pano-03	Most, nearly all, effectively all in quantity.	e.g. panallergenic, panbacterial, panhypopituitarism	Abstract: Quantity	Relative	Composition	More?	∞	>> Most
pari-1	pari-1	Equal.	e.g. parity	Abstract: Quantity	Relative	Equality	More?	=	= Equal
pleo-	pleio-, pleo-	More.	example(s) from: pleonasm, pleroma	Abstract: Quantity	Relative	Equality	More?	>	> More
plusquam-	plusquam-	(chiefly forming nonce words) more than; beyond (in degree).		Abstract: Quantity	Relative	Equality	More?	>	> More
super-4	super-4	Greater than in quantity.	e.g. superwavelength, supersynchronous, superrotation	Abstract: Quantity	Relative	Equality	More?	>	> More
supra-4	supra-4	More than.	e.g. supramillion, supracritical	Abstract: Quantity	Relative	Equality	More?	>	> More
sur-2	sur-2	More than, additional.	e.g. surpass, surabundant, surexpression	Abstract: Quantity	Relative	Equality	More?	>	> More
ultra-1	ultra-1	Greater than normal quantity or importance.	e.g. ultrasecret	Abstract: Quantity	Relative	Equality	More?	>	> More
under-3	under-3	Less than, beneath in quantity.	e.g. underadditive, underage, underbound	Abstract: Quantity	Relative	Equality	More?	<	< Less

Abstract: Ranking

Hierarchy

Prefixes categorized as Hierarchy, Abstract: Ranking.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
arch-1	arch-1, archa-1, arche-1, archi-1, archo-1	A title in a hierarchy which indicates a higher degree of rank than its suffix.	e.g. archeparch, archmarshal, archdiocese	Abstract: Ranking	Hierarchy			>
co-10	co-10	Coequal, equal in rank.	e.g. coadministrator, coassessor, cocaptain	Abstract: Ranking	Hierarchy		Relative	=
co-17	co-17	Secondary or auxiliary in rank or priority.	e.g. copilot, coabuser, cofeature, coname	Abstract: Ranking	Hierarchy			<
con-06	col-06, com-06, con-06, cor-06	A fellow kind of the suffix.	e.g. concitizen, condisciple, concelebrant	Abstract: Ranking	Hierarchy		Relative	=
epi-15	epi-15	Outranked, above in rank.	e.g. epifamily, epiphyletic, eparchy	Abstract: Ranking	Hierarchy			>
even-4	even-4	(rare, dialectal or no longer productive) Prefix occurring mostly in older terms, bearing the meaning of equal in rank, joint, co-, fellow-.	e.g. even-bishop, even-christian, even-servant	Abstract: Ranking	Hierarchy		Relative	=
fore-16	fore-16	Greater in rank, superior.	e.g. forehand, forechoice, forby	Abstract: Ranking	Hierarchy			>
fore-17	fore-17	Prominent, most important, foremost or greatest in rank.	e.g. forecolour, forehand, foreground	Abstract: Ranking	Hierarchy			∞
over-2	over-2	Superior.	e.g. overlord	Abstract: Ranking	Hierarchy			>
prim-2	prim-2, prime-2	Foremost, chief, principal, prime, eminent.	e.g. primly	Abstract: Ranking	Hierarchy			∞
sous-2	sous-2	Subordinate.	e.g. sous-chef, sous-lieutenant	Abstract: Ranking	Hierarchy		Relative	>
sub-2	sub-2, sur-3	Subsidiary, secondary.	e.g. subplot	Abstract: Ranking	Hierarchy		Relative	>
super-6	super-6	Superior in title or status.	example(s) from: supervisor, superintendent	Abstract: Ranking	Hierarchy		Relative	<
under-5	under-5	Subordinate to.	e.g. undersecretary, underling	Abstract: Ranking	Hierarchy		Relative	>
vice-	vic-, vice-	Replacement, deputy, assistant.	example(s) from: vice-president, vice-principal, vice-admiral	Abstract: Ranking	Hierarchy		Absolute	>

Potency

Prefixes categorized as Potency, Abstract: Ranking.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
arch-4	arch-4, archa-4, arche-4, archi-4, archo-4	Powerful, potent.	e.g. archmage, archwife, archvillain	Abstract: Ranking	Potency			>
forti-	forti-	Strong.		Abstract: Ranking	Potency			>
in-8	ig-8, il-8, im-8, in-8, ir8	Cannot.	e.g. incredulity	Abstract: Ranking	Potency			≠
stheno-	stheno-	Strength, force, power.	e.g. sthenolagnia, sthenic	Abstract: Ranking	Potency			>
super-7	super-7	Superior in power or potency.	e.g. supervolcano, supercow, superantigen	Abstract: Ranking	Potency			>

Ranking

Prefixes categorized as Ranking, Abstract: Ranking.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
after-1	after-1	With contrary, subordinate, or remote effect; denoting hindrance, setback, inferiority, etc.	e.g. afterdeal, aftertale	Abstract: Ranking	Ranking
alder-	alder-	Of all, having the greatest degree of something.		Abstract: Ranking	Ranking			∞
aristo-3	aristo-3	The best, superior, ideal.	e.g. aristophagist, aristophrenic, aristotype	Abstract: Ranking	Ranking		Absolute	∞
by-2	by-2, bye-2	Secondary, incidental, or parallel to.	e.g. by-product, byform, by-path	Abstract: Ranking	Ranking			<
fore-14	fore-14	Previous or earlier in order or sequence.	e.g. foredescribed, forebook, forebelief	Abstract: Ranking	Ranking
fore-15	fore-15	First in order or sequence.	e.g. forebell, forefinger, foredeal	Abstract: Ranking	Ranking
inter-28	inter-28	An intermediator or middleman between multiple social entities. The suffix indicates the kind of intermediator rather than the social entities.	e.g. intermediatrix	Abstract: Ranking	Ranking			=
proto-4	prot-4, proto-4	Primary.	e.g. protoderm, protocneme	Abstract: Ranking	Ranking

Abstract: Sets

Combination

Prefixes categorized as Combination, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
ambi-1	ambi-1, ambo-1	Either, both.	e.g. ambidirectional, ambipolar, ambispective, ambifix	Abstract: Sets	Combination	Transcendence	Both?	<
amphi-2	amph-2, amphi-2, ampho-2	Either, both; having two distinct properties and able to function as either.	e.g. amphinucleolus, amphiphobic, amphithallic	Abstract: Sets	Combination	Transcendence	Both?	<

Complexity

Prefixes categorized as Complexity, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
hetero-03	heter-03, hetero-03	(chemistry) A heterogeneous mixture.	e.g. heterofunctionalization, heterofibril, heterodimeric	Abstract: Sets	Complexity

Composition

Prefixes used to indicate joining/un-joining, whole/part.

Prefixes categorized as Composition, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
all-	al-, all-	Complete, general.	e.g. ‎all-knowing, all-important	Abstract: Sets	Composition				Whole
allo-03	allo-03	An arbitrary a member of a heterogenous-but-interrelated group.	e.g. alloalbumin, allomorph, alloidentical	Abstract: Sets	Composition
amphi-3	amph-3, amphi-3, ampho-3	Merging two forms, and/or the fusion or inheritance that results from the combination.	e.g. amphimixis, amphidiploid, amphisome	Abstract: Sets	Composition				Hybrid
aniso-2	aniso-2	Asymmetric.		Abstract: Sets	Composition	Symmetry	Balanced?	=	! Asymmetric
apo-02	ap-02, aph-02, apo-02	(biochemistry) An apoenzyme: an enzyme without its cofactor; associated apoproteins.	e.g. aporeceptor, apoflavoprotein, apomucin	Abstract: Sets	Composition
apo-06	ap-06, aph-06, apo-06	Removal, amputation.	e.g. apotemnophobia, apotemnophilia, apophallation	Abstract: Sets	Composition
bi-02	bi-02, bin-02, bis-02	Having or possessing two of the suffixed quality.	e.g. biangular, biantheriferous, bicardial	Abstract: Sets	Composition
bi-03	bi-03, bin-03, bis-03	Both: referring to two as a set.	e.g. biacetabular, biallelic, bicaval	Abstract: Sets	Composition
bi-11	bi-11, bin-11, bis-11	A pair of; composed of two.	e.g. bibrow, bicomplex	Abstract: Sets	Composition				2
co-02	co-02	Along with: the suffix is done along with or in addition to others.	e.g. coassemble, coadhesion, coadsorb	Abstract: Sets	Composition
co-08	co-08	Gender-mixed; having men and women together for the suffixed activity or location.	e.g. co-corrections, co-educate	Abstract: Sets	Composition
con-04	col-04, com-04, con-04, cor-04	Belonging to the same group indicated by the suffix.	e.g. confamilial, contypic, conspecific	Abstract: Sets	Composition				Among
cross-11	cross-11	To combine two entities to create a hybrid.	e.g. crossbreed, cross-pollinate, crosslinear	Abstract: Sets	Composition				Hybrid
demi-2	demi-2	One that partly belongs to.	example(s) from: demigod	Abstract: Sets	Composition				Part
di-3	di-3	A pair.	e.g. diblock, dimeson, dijet	Abstract: Sets	Composition				2
di-4	di-4	Both, possessing two distinct (possibly opposing) qualities.	e.g. dikinetic, dialetheism, dianalytic	Abstract: Sets	Composition
epi-23	epi-23	Entirety, a system being referred to as a whole.	e.g. epichaperome, epiorganism, epicrisis	Abstract: Sets	Composition				Whole
erem-2	erem-2	Solitary.		Abstract: Sets	Composition			.	Not joined
for-09	for-09, fore-19	Excluding: prefixed to verbs to give the sense of prohibition or exclusion.	e.g. forjudge, forshut, forbar	Abstract: Sets	Composition
full-	ful-, full-	Fully, completely, in full.		Abstract: Sets	Composition				Whole
germ-	germ-	Basic part.		Abstract: Sets	Composition				Part
haplo-4	aplo-4, haplo-4	Single.	e.g. haploscope, haploid, haplometrosis	Abstract: Sets	Composition
hetero-02	heter-02, hetero-02	(organic chemistry) Heterocyclic: a cyclic compound with multiple elements in its ring. The non-carbon atoms are known as heteroatoms.	e.g. heteroalkene, heteroaddition, heterofullerene, heteroaromatic	Abstract: Sets	Composition
hetero-09	heter-09, hetero-09	Asymmetric in shape.	e.g. heterogangliate, heteracanth, heterocercal	Abstract: Sets	Composition	Symmetry	Balanced?	≠	! Asymmetric
holo-	hol-, holo-	Whole, complete, total.		Abstract: Sets	Composition				Whole
in-2	i-2, il-2, in-2	Within.	e.g. inbreed, inburning, incircle	Abstract: Sets	Composition				Among
inter-03	inter-03	A social position which is in between two (or more) of the kind of social group indicated by the suffix.	e.g. interarmy, interobserver, interparental	Abstract: Sets	Composition
intra-01	intra-01	Within a group or concept.	e.g. intraclade, intracoalition, intracorporate	Abstract: Sets	Composition				Among
intra-11	intra-11	A part of the suffixed entity.	e.g. intramountain, intradiegetic	Abstract: Sets	Composition				Part
kern-	kern-	Kernel, smaller but central part of an entity.	e.g. kernicterus, kernelization, kernelless	Abstract: Sets	Composition				Part
mero-	mer-3, mero-	Partly, partial. Part, component.	example(s) from: merocrine, meroblastic	Abstract: Sets	Composition				Part
micto-	micto-	Mixed.		Abstract: Sets	Composition			>	Hybrid
mid-4	mid-4	Amid.		Abstract: Sets	Composition				Among
notho-	notho-	Used to indicate a hybrid taxonomic element.		Abstract: Sets	Composition			>	Hybrid
omni-	omni-	All, universal.	example(s) from: omnipotent, omnipresent, omnivore	Abstract: Sets	Composition			∞	Whole
pan-04	pan-04, pano-04	Encompassing, including all, or involving all.	e.g. pancaspase, pangender, panlingual	Abstract: Sets	Composition			∞	Whole
panto-	pant-, panta-, panto-	Indicating the whole, entirety.		Abstract: Sets	Composition			∞	Whole
pseudo-2	pseud-2, pseudo-2	Substitute, simulation.	e.g. pseudoangle, pseudarthrosis; example(s) from: pseudonym	Abstract: Sets	Composition				Substitution
symmetro-	symmetro-	Combining form of symmetry.		Abstract: Sets	Composition	Symmetry	Balanced?	=	= Symmetric
syn-2	sy-2, syl-2, sym-2, syn-2, sys-2	With, together.	example(s) from: syllable, symbol, synthesis, system	Abstract: Sets	Composition				Among
systemo-	system-, systemo-	System.		Abstract: Sets	Composition				Whole
with-4	with-4	With, along with, together with.	example(s) from: withstand, withhold	Abstract: Sets	Composition				Among

Fullness

Prefixes categorized as Fullness, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
koilo-2	koil-2, koilo-2	Hollow, empty.	example(s) from: koilocyte2	Abstract: Sets	Fullness		Full?	.	Empty
vac-	vac-	Empty.		Abstract: Sets	Fullness		Full?	.	Empty

Homogeneity

Prefixes categorized as Homogeneity, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aeolo-	aeolo-	In continuous change.	e.g. aeolotropy	Abstract: Sets	Homogeneity	Equality	Uniform?	≠	! Variety
allo-12	allo-12	Variety, heterogeneity.	e.g. allopelagic, allochronic, allocentric	Abstract: Sets	Homogeneity		Uniform?	≠	! Variety
con-14	col-14, com-14, con-14, cor-14	Uniform, or made to be the same as.	e.g. concolorate	Abstract: Sets	Homogeneity		Uniform?	=	= Uniform
eury-	eury-	A wide variety or range.	e.g. eurybathic, eurytherm, euryvalent	Abstract: Sets	Homogeneity		Uniform?	≠	! Variety
hetero-01	heter-01, hetero-01	Varied, heterogeneous; a set that has variety with respect to the suffix.	e.g. heterogamous, heterochromatic, heterogender, heteroglossia	Abstract: Sets	Homogeneity	Symmetry	Balanced?	≠	! Variety
homeo-	home-, homeo-, homoe-, homoeo-, homoi-, homoio-, homœ-, homœo-	Similar.	e.g. homeostasis, homeomorphy, heomeomorphy	Abstract: Sets	Homogeneity		Uniform?	=	= Uniformity
homo-1	homo-1	Same, similar, alike, identical.	example(s) from: homogeneous, homogenize, homologous, homophone, homozygous	Abstract: Sets	Homogeneity		Uniform?	=	= Uniformity
iso-	is-, iso-	Equal, homogeneous, uniform. Isomer. For or from different individuals of the same species.	example(s) from: isochromatic, isotherm	Abstract: Sets	Homogeneity		Uniform?	=	= Uniformity
poikilo-1	poecilo-1, poikilo-1, pœcilo-1	Variable.	e.g. poikilocapnic, poikilochlorophyllous, poikilothermic	Abstract: Sets	Homogeneity		Uniform?	≠	! Variety
tropo-	tropo-	Change, turn, difference.	e.g. tropophobia, tropomorphic, troposphere	Abstract: Sets	Homogeneity	Equality	Uniform?	≠	! Variety
vari-	vari-	Various, variety.	e.g. variform, varigauge, varihued	Abstract: Sets	Homogeneity		Uniform?	≠	! Variety

Placeholder

Prefixes categorized as Placeholder, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
even-2	even-2	(no longer productive) Uniform, evenly in quantity.	e.g. even-down, even-tempered, even-toned	Abstract: Sets	Placeholder	Change	Increasing?	=

Size, sets

Prefixes categorized as Size, sets, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
haplo-3	aplo-3, haplo-3	Simple.	e.g. haploceratid, haplodont, haplostele	Abstract: Sets	Size, sets	Difficulty	Cardinality?	<	Simple
pro-5	pro-5	rudimentary.		Abstract: Sets	Size, sets	Difficulty	Cardinality?	<	Simple

State

Prefixes categorized as State, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-03	a-03	In, on, at; used to show a state, condition, or manner. Also passing into sense 2.	e.g. apace, afire, aboil, a-bling	Abstract: Sets	State	Possession	Have?	>	With
ambi-3	ambi-3, ambo-3	Intermediate between two categories.	e.g. ambisense, ambivert, ambisyllabicity	Abstract: Sets	State	Intermediate	Both?	=	Intermediate
amphi-5	amph-5, amphi-5, ampho-5	Intermediate between two properties or characteristics.	e.g. amphiarthrosis, amphilogy, amphigamous	Abstract: Sets	State	Intermediate	Both?	=	Intermediate
cross-04	cross-04	Moving from one track or state to another.	e.g. crossfeed, crossfader, cross-link	Abstract: Sets	State	Intermediate	Both?	=	Intermediate
ex-4	ex-4	(biology) Lacking, not possessing.	e.g. excaudate, exstipulate	Abstract: Sets	State	Possession	Have?	<	Without
in-5	il-5, im-5, in-5, ir5	Having, possessing.	e.g. imbannered, inaureole, incarnate	Abstract: Sets	State	Possession	Have?	>	With
in-7	ig-7, il-7, im-7, in-7, ir7	Added to nouns to mean lacking or without.	e.g. inaccurate	Abstract: Sets	State	Possession	Have?	<	Without
inter-25	inter-25	Intermediate between multiple of the type indicated by the suffix.	e.g. intergenotype	Abstract: Sets	State	Intermediate	Both?	=	Intermediate
meso-05	mes-05, meso-05	Intermediate between two properties or characteristics.	e.g. mesocratic, mesognathous, mesohydrophyte	Abstract: Sets	State	Intermediate	Both?	=	Intermediate
mid-3	mid-3	Intermediate.	e.g. mid-key	Abstract: Sets	State	Intermediate	Both?	=	Intermediate
or-2	or-2	Without, does not have.	e.g. orped	Abstract: Sets	State	Possession	Have?	<	Without
se-2	se-2	Without.	e.g. secure	Abstract: Sets	State	Possession	Have?	<	Without

Union

Prefixes categorized as Union, Abstract: Sets.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
agglutin-	agglutin-, agglutino-	Adhere or clump.		Abstract: Sets	Union		Joined?	>	Joining
ankylo-2	anchyl-2, anchylo-2, ancyl-2, ancylo-2, ankyl-2, ankylo-2	Fused, fusion.	e.g. ankylothecodont, ankylose, ankylurethria, ankyloblepharon	Abstract: Sets	Union		Joined?	>	Joining
combi-	combi-	Combination.		Abstract: Sets	Union		Joined?	>	Joining
con-01	col-01, com-01, con-01, cor-01	Unite: to unite into a collection indicated by the suffix.	e.g. concorporate, conglobulate, conglutination	Abstract: Sets	Union		Joined?	>	Joining
de-2	de-2	Removing, to remove from.	e.g. debenzylate, dearterialization, deallocate, detrain	Abstract: Sets	Union		Joined?	<	Un-joining
des-	des-	Removal of a group from a molecule.		Abstract: Sets	Union		Joined?	<	Un-joining
desmo-	desmo-	Bond, chain.		Abstract: Sets	Union		Joined?	>	Joining
dicho-	dicho-	In two parts, paired.		Abstract: Sets	Union		Joined?	>	Joining
dis-2	di-5, dis-2	Expressing separation or removal.	e.g. discard, disbar, disfranchise	Abstract: Sets	Union		Joined?	<	Un-joining
e-1	e-1	Used to form adjectives with the sense of something being lacking or removed.	e.g. eluviation, edentulous, elenge	Abstract: Sets	Union		Joined?	<	Un-joining
ec-	ec-	Out of, exclude.	example(s) from: ectopia, w:ectopic pregnancy	Abstract: Sets	Union		Joined?	<	Un-joining
filtro-	filtro-	To filter, strain.		Abstract: Sets	Union		Joined?	<	Un-joining
fix-2	fix-2	To attach.		Abstract: Sets	Union		Joined?	>	Joining
frac-	frac-	To break, cleave.		Abstract: Sets	Union		Joined?	<	Un-joining
gamo-3	gamo-3	United, fused, merged.	e.g. gamopetalous, gamosepalous, gamophyllous	Abstract: Sets	Union		Joined?	>	Joining
hapto-1	hapto-1	Binding.		Abstract: Sets	Union		Joined?	>	Joining
inter-09	inter-09	Combining together: the suffixed verb is done together, generally uniting or merging multiple objects.	e.g. interfuse, interknit, interreact	Abstract: Sets	Union		Joined?	>	Joining
inter-10	inter-10	Hybrid: combining two or more of the suffix together to produce a hybrid.	e.g. interculture, interhalogen, interprime	Abstract: Sets	Union		Joined?	>	Joining
inter-17	inter-17	Link: to connect multiple kinds of the suffix.	e.g. intercellular, interneuron, internetwork	Abstract: Sets	Union		Joined?	>	Joining
inter-29	inter-29	Inserting between multiple entities of the kind indicated by the suffix.	e.g. internym, interdental, interlinear	Abstract: Sets	Union		Joined?	>	Joining
ligato-	ligato-	To bind, tie.		Abstract: Sets	Union		Joined?	<	Un-joining
lyo-	ly-, lyo-	Dispersion, dissolution.		Abstract: Sets	Union		Joined?	<	Un-joining
lyso-	lys-, lyso-	Disintegration, breakdown.	example(s) from: lysosome	Abstract: Sets	Union		Joined?	<	Un-joining
per-3	per-3	(non-productive) In verbs: denoting the sense "to destruction".	e.g. pervert	Abstract: Sets	Union		Joined?	<	Un-joining
phragmo-	phragmo-	Divided due to obstruction or barrier.		Abstract: Sets	Union		Joined?	<	Un-joining
phylo-	phylo-	Group, grouping.		Abstract: Sets	Union		Joined?	>	Joining
rupt-	rupt-	To break.		Abstract: Sets	Union		Joined?	<	Un-joining
schizo-1	schist-1, schisto-1, schiz-1 , schizo-1	Split, cleft, splittable.	e.g.schizodactyly, schizogony, schizoid, schizophasia	Abstract: Sets	Union		Joined?	<	Un-joining
septo-	septo-	Partition.		Abstract: Sets	Union		Joined?	<	Un-joining
to-01	to-01	Parting: forming verbs that involve cleaving, breaking, or sundering.	e.g. tocrack, togrind, torend	Abstract: Sets	Union		Joined?	<	Un-joining
to-10	to-10	Adding, additional in quantity.	e.g. to-bread, to-name	Abstract: Sets	Union		Joined?	>	Joining
tomo-	tomo-	To cut.		Abstract: Sets	Union		Joined?	<	Un-joining
zygo-	zyg-, zygo-	Joining or pairing; union, pair.		Abstract: Sets	Union		Joined?	>	Joining

Abstract: Spatial

Angles

Prefixes used to indicate angle: acute/oblique, straight/curved, flat/erect

Prefixes categorized as Angles, Abstract: Spatial.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
ambly-	ambly-, amblyo-	Dull, blunt, obtuse.		Abstract: Spatial	Angles		Obtuse?	>	Obtuse
ankylo-1	anchyl-1, anchylo-1, ancyl-1, ancylo-1, ankyl-1, ankylo-1	Crooked.	e.g. ankylosaurus, ankylosis	Abstract: Spatial	Angles	Correct	Obtuse?	.	Bent
arc-	arc-	Used to form the names of inverse trigonometric and hyperbolic functions, and also the symbols for these functions.	e.g. arcsin, arctan	Abstract: Spatial	Angles
clino-	clino-	Inclined.		Abstract: Spatial	Angles
cross-02	cross-02	Perpendicular in angle; transverse.	e.g. crossbedding, crossband, crossmember	Abstract: Spatial	Angles		Obtuse?	=	Perpendicular
cyph-	cyph-, cypho-	Bent, crooked.	example(s) from: cyphosis	Abstract: Spatial	Angles	Correct	Obtuse?	.	Bent
cyrto-	cyrto-	Curved, convex.	e.g. cyrtometer, cyrtostyle	Abstract: Spatial	Angles		Obtuse?	<	Convex
gonio-	gonio-	Angle.		Abstract: Spatial	Angles
ithy-	ithy-	Erect, straightened.		Abstract: Spatial	Angles	Vertical	Obtuse?	∞	Straight
koilo-1	koil-1, koilo-1	Concave.	e.g. koilonychia, koilosternia	Abstract: Spatial	Angles		Obtuse?	>	Concave
kyph-	kyph-, kypho-	Bent, humped, hunchbacked.	example(s) from: kyphoscoliosis	Abstract: Spatial	Angles	Correct	Obtuse?	.	Bent
ortho-01	orth-01, ortho-01	Right angle, perpendicular.	e.g. orthogon, orthocentric, orthoclastic	Abstract: Spatial	Angles		Obtuse?	=	Right
para-02	par-02, para-02	Parallel.	e.g. paraconformity, paraxial	Abstract: Spatial	Angles		Obtuse?	∞	Parallel
plagio-	plagio-	Oblique angle.		Abstract: Spatial	Angles		Obtuse?	≠	Oblique
plani-	plani-, plano-	Level, flat.		Abstract: Spatial	Angles	Vertical	Obtuse?	∞	Straight
platy-	platy-	Level, flat.		Abstract: Spatial	Angles	Vertical	Obtuse?	∞	Straight
recti-	recti-	Straight.		Abstract: Spatial	Angles	Vertical	Obtuse?	∞	Straight
scolio-	scoli-, scolio-	Crooked, bent.	example(s) from: scoliosis	Abstract: Spatial	Angles	Correct	Obtuse?	.	Bent

Direction

Prefixes categorized as Direction, Abstract: Spatial.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-01	a-01	Forming verbs with the sense away, up, on, out.	e.g. arise, await	Abstract: Spatial	Direction	Internal	Inward?	<	Outward
a-04	a-04	In, into.		Abstract: Spatial	Direction	Internal	Inward?	>	Inward
a-05	a-05	In the direction of, or toward.	e.g. astern, abeam	Abstract: Spatial	Direction	Proximal	Toward?	>	Toward
a-13	a-13	Away from.	e.g. avert, aperient, abridge, assoil	Abstract: Spatial	Direction	Proximal	Toward?	<	Away
ab-	ab-, abs-	Away from, without.	example(s) from : abduction, abdomen	Abstract: Spatial	Direction	Proximal	Toward?	<	Away
ac-	ac-	To, toward, near.		Abstract: Spatial	Direction	Proximal	Toward?	>	Toward
accelero-	accelero-	Acceleration.		Abstract: Spatial	Direction	Change	Fast?	∞	Accelerating
ad-3	ad-3	Towards in direction or movement. (anatomy) Towards the midline of the body.	e.g. adapical, adfluvial, adgerminal	Abstract: Spatial	Direction	Proximal	Toward?	>	Toward
ad-6	ad-6	Appending and/or prepending. Adding from either side.	e.g. adfix, adposition, affix	Abstract: Spatial	Direction	Horizontal	Forward?	∞	Bilateral
af-	af-	Away, from, off.		Abstract: Spatial	Direction	Proximal	Toward?	<	Away
ag-	ag-	To, towards.		Abstract: Spatial	Direction	Proximal	Toward?	>	Toward
ali-	ali-	Lateral expansion.		Abstract: Spatial	Direction	Lateral	Forward?	∞	Side
ana-3	ana-3	Backward in direction.	e.g. anagram, anaplasia, anaphase	Abstract: Spatial	Direction	Horizontal	Forward?	<	Backward
anti-4	ant-4, anti-4	Physically opposite, reverse in position or direction.	e.g. anticlockwise, Antarctic	Abstract: Spatial	Direction	Spatial	?	≠	Opposite
apo-05	ap-05, aph-05, apo-05	Away from, outward, or apart in direction.	e.g. apocentromeric, apheliotropic, apophlegmatic, apopyle, apophysis	Abstract: Spatial	Direction	Proximal	Toward?	<	Away
as-	as-	Away from.		Abstract: Spatial	Direction	Proximal	Toward?	<	Away
be-2	be-2	Around; about.	e.g. begather, belay, belook, bestir, belive, besmell, bewrap	Abstract: Spatial	Direction	Internal	Inward?	.	Around
be-5	be-5	Off, away, over, across.	e.g. becut, bedeal, betake, bego, behead, belimb, benim, bereave, besleeve, betrunk	Abstract: Spatial	Direction	Internal	Toward?	<	Away
brady-	brady-	Slowness.	e.g. bradycardia, bradygastria, bradyseism	Abstract: Spatial	Direction	Change	Fast?	<	Slow
cata-	cat-, cata-, kata-	Downwards movement, backwards, reverse.	example(s) from: catabolism, catacombs, cataract	Abstract: Spatial	Direction	Vertical	Upward?	<	Downward
circum-	circum-	Around.	example(s) from: circumlocution, circumnavigate, circumference	Abstract: Spatial	Direction	Spatial	Inward?	.	Around
co-07	co-07	Moving or oriented in the same direction; co-directional.	e.g. coflowing, cocurrent, coalign	Abstract: Spatial	Direction	Spatial	?	=	Same
cross-03	cross-03	Moving from one side to the other; across. Often diagonal.	e.g. crossfield, cross-city, crossbelt, crosscourt	Abstract: Spatial	Direction	Internal	Inward?	∞	Across
deorsum-	deorsum-	In a downwards direction.		Abstract: Spatial	Direction	Vertical	Upward?	<	Downward
dia-	di-6, dia-	Through, across.	example(s) from: dialysis, diameter	Abstract: Spatial	Direction	Internal	Inward?	∞	Across
down-	down-	Down, downwards.	example(s) from: download, downright, downbeat	Abstract: Spatial	Direction	Vertical	Upward?	<	Downward
en-1	el-1, em-1, en-1	in, into.	e.g. embathe, enquire, enlist	Abstract: Spatial	Direction	Internal	Inward?	>	Inward
en-2	el-2, em-2, en-2	on, onto.	e.g. embark, enplane, enthrone	Abstract: Spatial	Direction	Internal	Inward?	>	Inward
epi-10	epi-10	Outward in direction or projection.	e.g. epignathous, epinasty, epipod	Abstract: Spatial	Direction	Internal	Inward?	<	Outward
epi-27	epi-27	Upwards in direction or growth.	e.g. epiphallus, epifilm, epigrowth	Abstract: Spatial	Direction	Vertical	Upward?	>	Upward
extro-	extro-	Outwards.		Abstract: Spatial	Direction	Internal	Inward?	<	Outward
for-01	for-01	Forth: prefixed to verbs to indicate a direction of 'away', 'off', 'forth'.	e.g. forsteal, forloppin, forban, fordrive, fortake, forthrow, forshake, forhow	Abstract: Spatial	Direction	Internal	Toward?	<	Away
fore-12	for-13, fore-12	Forward in spatial direction.	e.g. forehearth, forebite, foregaze	Abstract: Spatial	Direction	Horizontal	Forward?	>	Forward
fore-13	for-13, fore-13	Outward in spatial direction.	e.g. forecry, forehand, foreleader	Abstract: Spatial	Direction	Internal	Inward?	<	Outward
forth-	forth-	Forth, forward, away.		Abstract: Spatial	Direction	Internal	Toward?	<	Away
hypso-3	hyps-3, hypsi-3, hypso-3	Upwards in movement or direction.	e.g. hypsochromic, w:Hypsibema	Abstract: Spatial	Direction	Vertical	Upward?	>	Upward
in-1	i-1, il-1, in-1	Inward.	e.g. inbeat, inbend, incave	Abstract: Spatial	Direction	Internal	Inward?	>	Inward
in-3	il-3, in-3	Into.	e.g. imband, imbar, imbarn	Abstract: Spatial	Direction	Internal	Inward?	>	Inward
insta-	insta-	Instant, fast, speedy.		Abstract: Spatial	Direction	Change	Fast?	>	Fast
integro-	integro-	Integration.		Abstract: Spatial	Direction	Change	Fast?	.	Antiderivative
intra-05	intra-05	A direction that is inward or into the location indicated by the suffix.	e.g. intracavitary, intracloacal, intracistern	Abstract: Spatial	Direction	Internal	Inward?	>	Inward
intro-	intro-	Into, inwards.		Abstract: Spatial	Direction	Internal	Inward?	>	Inward
ob-3	ob-3, os-3	To place before, go up to.	e.g. obtend, obverse, obreption	Abstract: Spatial	Direction	Horizontal	Toward?	>	Toward
off-	off-	Away from, off.	example(s) from: off-color, offish, offset	Abstract: Spatial	Direction	Spatial	Toward?	<	Away
on-	on-	On, toward, forward.	example(s) from: onset, onlook, ongoing, oncoming	Abstract: Spatial	Direction	Spatial	Toward?	>	Toward
or-1	or-1	Out, outwards, laid out.	e.g. ordeal, orlay	Abstract: Spatial	Direction	Internal	Inward?	<	Outward
ortho-15	orth-15, ortho-15	Vertical or upright in movement.	e.g. orthotropic, orthostasis, orthograde	Abstract: Spatial	Direction	Vertical	Upward?	>	Upward
out-2	out-2	Toward the outside of, away from.	e.g. outcast, outlead, outflee	Abstract: Spatial	Direction	Internal	Inward?	<	Outward
pan-08	pan-08, pano-08	Spanning the entirety of a set which may not be countable, its members may not be clearly distinguished from each other.	e.g. pancontinental, pan-Covid, pancultural	Abstract: Spatial	Direction	Internal	Inward?	∞	Across
para-01	par-01, para-01	Beside, alongside.	e.g. parasite, parallel, paracapsular	Abstract: Spatial	Direction	Internal	Inward?	.	Around
para-10	par-10, para-10	Across, through, throughout.	e.g. paracotylar, paraesophageal, paracloacal, paracostal	Abstract: Spatial	Direction	Spatial	Inward?	∞	Across
per-1	per-1	(non-productive) In verbs: denoting the sense "through".	e.g. perforate	Abstract: Spatial	Direction	Spatial	Inward?	∞	Across
pro-3	pro-3	Forward movement.	e.g. procede, propel, progress	Abstract: Spatial	Direction	Horizontal	Forward?	>	Forward
proso-	pros-, proso-	Towards, forward.	e.g. prosthesis, prostrate, prose	Abstract: Spatial	Direction	Horizontal	Forward?	>	Forward
pur-1	pur-1	Forwards, movement.	e.g. pursue, purport	Abstract: Spatial	Direction	Horizontal	Forward?	>	Forward
re-3	re-3	Back, backward.	e.g. reject, reply, resist	Abstract: Spatial	Direction	Horizontal	Forward?	<	Backward
recto-2	recto-2	In the direction of the rectum.	e.g. rectoabdominal	Abstract: Spatial	Direction	Horizontal	Forward?	<	Backward
retro-	retro-	Backwards, behind.	example(s) from: retrograde	Abstract: Spatial	Direction	Horizontal	Forward?	<	Backward
se-1	se-1	Apart, away from.	e.g. secede, seclude, segregate	Abstract: Spatial	Direction	Spatial	Toward?	<	Away
stato-	stato-	Balance, equilibrium, rest.		Abstract: Spatial	Direction	Change	Fast?	≠	Rest
sursum-	sursum-	In an upwards direction.		Abstract: Spatial	Direction	Vertical	Upward?	>	Upward
tachy-	tachi-, tacho-, tachy-	Fast, rapid, speed.	example(s) from: tachycardia, tachypnea	Abstract: Spatial	Direction	Change	Fast?	>	Fast
to-11	to-11	Toward in direction or location.	e.g. to-draw, tofall, together	Abstract: Spatial	Direction	Spatial	Toward?	>	Toward
trans-1	trans-1	Extending across, through, or over.	e.g. transnational, transregional, transamerican	Abstract: Spatial	Direction	Spatial	Inward?	∞	Across
turbo-2	turbo-2	To accelerate.		Abstract: Spatial	Direction	Change	Fast?	∞	Accelerating
up-2	up-2	Upwards; used to indicate higher position or direction, literally or figuratively.	example(s) from: upgrade, uplift, upright	Abstract: Spatial	Direction	Vertical	Upward?	>	Upward
versi-	versi-, verso-, vert-, verti-	Turn, change.		Abstract: Spatial	Direction	Any	?	≠	Change
volvo-	volvo-	Turn about, roll.		Abstract: Spatial	Direction	Spatial	Forward?	.	Turning
with-3	with-3	Off, out, away, from.	example(s) from: withstand, withhold	Abstract: Spatial	Direction	Internal	Toward?	<	Away

Position

Prefixes categorized as Position, Abstract: Spatial.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acro-02	acr-02, acro-02, akro-02	Located or positioned at a tip or tips of an object or body.	e.g. acrocentric, acropleurogenous, acrocarpous	Abstract: Spatial	Position	Internal	Inner?	<	Outer
acro-03	acr-03, acro-03, akro-03	Located or positioned at the top; uppermost.	e.g. acrodendrophile, acropleustophyte, acrotrophic	Abstract: Spatial	Position	Vertical	Above?	∞	Top
acro-06	acr-06, acro-06, akro-06	Heights, high in location.	e.g. acrophilia, acrophilia, acrophobe	Abstract: Spatial	Position	Vertical	High?	>	High
acro-08	acr-08, acro-08, akro-08	Upper.	e.g. acrophyll, acrolect, acrodactylum	Abstract: Spatial	Position	Vertical	Superior?	>	Upper
acro-09	acr-09, acro-09, akro-09	High in altitude, montane.	e.g. acrophyte, acrophile	Abstract: Spatial	Position	Vertical	High?	>	High
ad-2	ad-2	Near, close to, adjacent.	e.g. adaxonal, addental, admedial	Abstract: Spatial	Position	Proximal	Near?	>	Near
ad-5	ad-5	Along, alongside.	e.g. admarginal, adnervular, adstratum	Abstract: Spatial	Position	Proximal	Near?	>	Near
ad-8	ad-8	Atop or above in position.	e.g. adatom, adcumulate, aggrade	Abstract: Spatial	Position	Vertical	Above?	>	Above
aft-	aft-	Positioned at or near the back.		Abstract: Spatial	Position	Horizontal	Front?	<	Back
after-2	after-2	With adverbial or adjectival effect, forming compound words indicating something that comes afterwards in spatial position.	examples from : after-limb, after-ship, afterdeck	Abstract: Spatial	Position	Horizontal	In front of?	<	Behind
allo-04	allo-04	External, outside, or from a separate location.	e.g. allonomous, allochory, allogenic	Abstract: Spatial	Position	Internal	Inner?	.	Outside
ambi-2	ambi-2, ambo-2	On both sides.	e.g. ambifix, ambilateral, ambilineal	Abstract: Spatial	Position	Lateral	Sides?	.	Bilateral
amphi-1	amph-1, amphi-1, ampho-1	Located on the opposite side of, or referring to two distinct sides or ends of a region or object.	e.g. amphicontinental, amphitropical, amphicrania	Abstract: Spatial	Position	Lateral	Sides?	≠	Contralateral
amphi-4	amph-4, amphi-4, ampho-4	Surrounding, around, encircling.	e.g. amphicribral, amphigynous, amphiphyte	Abstract: Spatial	Position	Internal	Interior?	<	Surrounding
amplexi-1	amplexi-1	Surrounded, encircled, entwined.		Abstract: Spatial	Position	Internal	Interior?	<	Surrounding
ana-1	ana-1	Up, above.	e.g. anaglyph, anafront, anagogy	Abstract: Spatial	Position	Vertical	Above?	>	Above
ana-6	ana-6	On the distal face of.	e.g. anaporate, anatreme, anacolpate	Abstract: Spatial	Position	Proximal	Near?	<	Distal
ante-2	ante-2	In front of in space.	example(s) from : antepartum	Abstract: Spatial	Position	Horizontal	In front of?	>	In front of
ante-3	ante-3	Anterior in location/direction.	example(s) from : anteorbital	Abstract: Spatial	Position	Horizontal	Anterior?	>	Anterior
antero-	anter-, anterio-, antero-	Nearer the front of the body.		Abstract: Spatial	Position	Horizontal	Anterior?	>	Anterior
apico-2	apic-2, apici-2, apico-2	The side of a body part (or organism) that is further away from the substrate it is attached to.	e.g. apicocardiac, apicolateral, apicomedial	Abstract: Spatial	Position	Proximal	Near?	<	Far
apo-09	ap-09, aph-09, apo-09	Exterior, outside of.	e.g. aposematism, apoplast	Abstract: Spatial	Position	Internal	Inner?	.	Outside
apo-12	ap-12, aph-12, apo-12	Distant, far from, or apart in position.	e.g. apophyte, apomecometry	Abstract: Spatial	Position	Proximal	Near?	<	Far
apo-13	ap-13, aph-13, apo-13	Furthest in position.	e.g. apocentric, apocenter, apastron	Abstract: Spatial	Position	Proximal	Near?	.	Furthest
apo-14	ap-14, aph-14, apo-14	(astronomy) Apoapsis: the point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its maximum.	e.g. apoposeidion, apouranion, apocytherion	Abstract: Spatial	Position	Proximal	Near?	.	Furthest
arct-1	arct-1, arcto-1	North, northern, arctic.		Abstract: Spatial	Position	Cardinal	North?	∧	Cardinal
at-	at-	At, close to, away, off.		Abstract: Spatial	Position	Proximal	Near?	>	Near
austro-	austral-, australo-, austro-	South, southern.		Abstract: Spatial	Position	Cardinal	North?	∨	Cardinal
back-	back-	Behind an object/structure (locative/directional).	example(s) from: backhoe, backfire	Abstract: Spatial	Position	Horizontal	In front of?	<	Behind
bathy-1	batho-1, bathy-1	Deep.		Abstract: Spatial	Position	Vertical	High?	<	Deep
be-1	be-1	By, near, next to, around, close to.	e.g. beleaguer, bestand, beset, besit	Abstract: Spatial	Position	Proximal	Near?	>	Near
bi-08	bi-08, bin-08, bis-08	(anatomy) Bilateral, on both sides of the body.	e.g. biconcave, biballism	Abstract: Spatial	Position	Lateral	Sides?	.	Bilateral
boreo-	boreo-	Northern.		Abstract: Spatial	Position	Cardinal	North?	∧	Cardinal
by-1	by-1, bye-1	Nearness or roundaboutness.	e.g. bystander, bypass	Abstract: Spatial	Position	Proximal	Near?	>	Near
caudo-3	caudo-3	In the direction of or proximity to a tail.		Abstract: Spatial	Position	Horizontal	Cranial?	<	Caudal
centro-	centr-, centri-, centro-	Centre, especially of mass nouns.		Abstract: Spatial	Position	Lateral	Right?	=	Middle
cis-1	cis-1	(geography) On this side of.	e.g. cisalpine, cisrhenane, Ciscaucasia	Abstract: Spatial	Position	Lateral	Sides?	=	Ipsilateral
cis-2	cis-2	(chemistry) Forming names of chemical compounds in which two atoms or groups are situated on the same side of some plane of symmetry passing through the compound.	e.g. cis-diazene	Abstract: Spatial	Position	Lateral	Sides?	=	Ipsilateral
citra-	citra-	On this side of; hither.		Abstract: Spatial	Position	Lateral	Sides?	=	Ipsilateral
co-05	co-05	Spatially located or positioned together, co-located.	e.g. cocirculate, coarctate, coattend	Abstract: Spatial	Position	Proximal	Near?	∨	Colocated
con-09	col-09, com-09, con-09, cor-09	Found with. What is found with the suffix.	e.g. consalazinic acid, conphaseolin, connegative	Abstract: Spatial	Position	Internal	Near?	∨	Colocated
con-13	col-13, com-13, con-13, cor-13	To surround or adorn with.	e.g. constrict, constellate	Abstract: Spatial	Position	Internal	Interior?	<	Surrounding
cross-05	cross-05	On the opposite side of.	e.g. crosstown, cross-cousin, cross-ratio	Abstract: Spatial	Position	Lateral	Sides?	≠	Contralateral
cross-07	cross-07	Located in between. Often, but not necessarily, forming an H-shaped structure.	e.g. cross-passage, cross-tunnel, crossfire	Abstract: Spatial	Position	Internal	Interior?	=	Between
dextro-	dex-, dextr-, dextro-	On the right.	example(s) from: dextrocardia	Abstract: Spatial	Position	Lateral	Right?	>	Right
disto-	disti-, disto-	Distal; remote, far from a reference/attachment point.		Abstract: Spatial	Position	Proximal	Near?	<	Far
dorso-	dors-, dorsi-, dorso-	The back of an organism.	example(s) from: dorsal, dorsocephalad	Abstract: Spatial	Position	Horizontal	Ventral?	<	Dorsal
ecto-	ect-, ecto-	Outside, external.	example(s) from: ectoblast, ectoderm, ectoplasm	Abstract: Spatial	Position	Internal	Inner?	.	Outside
end-	end-, endo-, ent-, ento-	Inside, within. taking in.	example(s) from: endocrinology, endospore, endoskeleton	Abstract: Spatial	Position	Internal	Inner?	∞	Inside
epi-01	epi-01	Above in location or position.	e.g. epilittoral, epinasal, epinecral	Abstract: Spatial	Position	Vertical	Above?	>	Above
epi-02	epi-02	Upon, atop, directly on top of in terms of position.	e.g. epibenthos, epipetric, epispinal	Abstract: Spatial	Position	Vertical	Above?	>.	Atop
epi-05	epi-05	A part or segment that is located on the upper part of an object.	e.g. epikarst, epiphase, episternum	Abstract: Spatial	Position	Vertical	Superior?	>	Upper
epi-06	epi-06	A part or location that is outer, particularly an outer layer.	e.g. epidermis, epipleuron, epitrochlea	Abstract: Spatial	Position	Internal	Inner?	<	Outer
epi-08	epi-08	Located on the surface.	e.g. epifascial, epilimnion, epixylous	Abstract: Spatial	Position	Internal	Inner?	<	Outer
epi-14	epi-14	Near in position.	e.g. epicellular, epistellar, epituberculosis	Abstract: Spatial	Position	Proximal	Near?	>	Near
epi-16	epi-16	Surrounding in position: the edges of the suffix.	e.g. epifascicular, epimacular, epiperimetric	Abstract: Spatial	Position	Internal	Interior?	<	Surrounding
epi-19	epi-19	Overlapping in position.	e.g. epilobous, epipharynx, epipole	Abstract: Spatial	Position	Proximal	Near?	∨	Overlapping
epi-21	epi-21	Top: a part that is positioned at the uppermost of multiple levels.	e.g. epipelagic, epiplankton, epivalve	Abstract: Spatial	Position	Vertical	Above?	∞	Top
epi-22	epi-22	Front or anterior in position.	e.g. epicnemial, epiplastron, episternum	Abstract: Spatial	Position	Horizontal	Anterior?	>	Anterior
epi-24	epi-24	Outside of in position.	e.g. epicycloid, epidural, episkeletal	Abstract: Spatial	Position	Internal	Inner?	.	Outside
epi-25	epi-25	Shallow in depth.	e.g. epithermal, epicortex, epigeous	Abstract: Spatial	Position	Vertical	High?	<	Shallow
eso-	eso-	Within, inner.		Abstract: Spatial	Position	Internal	Inner?	>	Inner
ex-2	ex-2	outside.	e.g. ex-directory	Abstract: Spatial	Position	Internal	Inner?	.	Outside
exo-	exo-	Outside, external, outer. turning out.	example(s) from: exophthalmos, exoskeleton, exoplanet	Abstract: Spatial	Position	Internal	Inner?	.	Outside
extero-	extero-	Outside.		Abstract: Spatial	Position	Internal	Inner?	.	Outside
extra-	extra-	Outside, beyond. Outward.	example(s) from: extracurricular	Abstract: Spatial	Position	Internal	Inner?	.	Outside
for-11	for-11	Thoroughly: prefixed to verbs with the sense of thoroughly, all over.	e.g. forgrow, forbathe, forseek, forwrap	Abstract: Spatial	Position	Internal	Interior?	∞	Throughout
for-12	for-12, fore-20	(rare) Outside, out, exterior.	e.g. foreclose, forcatch, forfeit	Abstract: Spatial	Position	Internal	Inner?	.	Outside
fore-04	for-13, fore-04	Positioned at or near the front.	e.g. forebooth, foregear, forehew	Abstract: Spatial	Position	Horizontal	Front?	>	Front
fore-05	fore-05	(nautical) The fore of a ship.	e.g. forecabin, forebridge, foreboom	Abstract: Spatial	Position	Horizontal	Front?	>	Fore
fore-06	fore-06	Anterior: the frontal part of a body.	e.g. forebrain, forehoof, foregear	Abstract: Spatial	Position	Horizontal	Anterior?	>	Anterior
fore-07	fore-07	Outer: the leading, outward portion of a wave or effort; or a distal part of a body.	e.g. forebeam, forefront, forebreast, forearm	Abstract: Spatial	Position	Proximal	Inner?	<	Outer
fore-08	fore-08	Forepart: the front part of an object or area.	e.g. forebody, forecourt, forehand	Abstract: Spatial	Position	Horizontal	Front?	>	Front
fore-09	fore-09	Near, close to, adjacent in position.	e.g. foredune, foreland, forby	Abstract: Spatial	Position	Proximal	Near?	>	Near
fore-10	fore-10	Nearest: the part of the suffix which is nearest/closest.	e.g. forebeach, forefield, forend	Abstract: Spatial	Position	Proximal	Near?	∞	Nearest
fronto-	front-, fronto-	The frontal part of an object.	example(s) from: frontonasal	Abstract: Spatial	Position	Horizontal	Front?	>	Front
hetero-07	heter-07, hetero-07	Opposite in direction or position.	e.g. heterodromous, heterofacial, heterodirectional, heterochiral	Abstract: Spatial	Position	Lateral	Sides?	≠	Contralateral
hinder-	hind-, hinder-	Positioned toward the rear, back.	example(s) from: hindsight, hindquarters	Abstract: Spatial	Position	Horizontal	Front?	<	Back
hyper-1	hyper-1	Over, above.	example(s) from: hyperthermia	Abstract: Spatial	Position	Vertical	Above?	>	Above
hypo-1	hyp-1, hypo-1	Below, beneath, under.	e.g. hypodermic, hypothalamus	Abstract: Spatial	Position	Vertical	Above?	<	Beneath
hypso-2	hyps-2, hypsi-2, hypso-2	High in location or position.	e.g. hypsophobia, hypsophyll, hypsophonous	Abstract: Spatial	Position	Vertical	High?	>	High
hypso-4	hyps-4, hypsi-4, hypso-4	Altitude or elevation; aloft, from on high.	e.g. hypsography, hypsometer, hypsometry	Abstract: Spatial	Position	Vertical	High?	>	High
infero-	infero-	Inferior, further below/lower on the body.		Abstract: Spatial	Position	Vertical	Superior?	<	Inferior
infra-	infra-	Below, underneath, beneath.	example(s) from: infrared	Abstract: Spatial	Position	Vertical	Above?	<	Beneath
inter-02	inter-02	A spatial position which is in between two (or more) of the kind of landmark indicated by the suffix.	e.g. interangular, interbarb, interbronchial	Abstract: Spatial	Position	Internal	Interior?	=	Between
inter-06	inter-06	A spatial position which is in between two adjacent landmarks of the kind indicated by the suffix.	e.g. interlexical, intercarinal, intercarbon	Abstract: Spatial	Position	Internal	Interior?	=	Between
inter-07	inter-07	A spatial position between the suffixed landmark and an unspecified reference point.	e.g. interhippocampal, intermercurial, interelectrolyte	Abstract: Spatial	Position	Internal	Interior?	=	Between
inter-12	inter-12	Interspatially: the suffixed verb is done between or among spatial entities; also forming nouns and adjectives derived from the verb form.	e.g. interfriction, interflow, intermesh, interlay	Abstract: Spatial	Position	Internal	Interior?	=	Between
inter-18	inter-18	Abutment: to connect multiple spatial regions of the type indicated by the suffix.	e.g. interoceanic, intersesamoidian, interregional	Abstract: Spatial	Position	Internal	Inner?	=	Connector
inter-20	inter-20	Overlapping: the overlap of multiple kinds of the suffix.	e.g. interartistic, intercausative, intersectional	Abstract: Spatial	Position	Proximal	Near?	∨	Overlap
inter-26	inter-26	Midsection: an object which is positioned spatially between multiple of the suffix.	e.g. interbasin, interfascicle, intershell	Abstract: Spatial	Position	Lateral	Right?	=	Middle
inter-27	inter-27	Connector: an object of the type of the suffix has a spatial position which is in between.	e.g. interjoist, interarea	Abstract: Spatial	Position	Internal	Inner?	=	Connector
intero-	intero-	From inside.		Abstract: Spatial	Position	Internal	Inner?	∞	Inside
intra-02	intra-02	Inside or with, in terms of location or position.	e.g. intrabone, intracardiac, intracolic	Abstract: Spatial	Position	Internal	Inner?	∞	Inside
intra-08	intra-08	Spatially located in between two points within the region indicated by the suffixed entity.	e.g. intramedian, intragalactic, intramolecular	Abstract: Spatial	Position	Lateral	Right?	=	Middle
intra-09	intra-09	Spatially located in between the suffixed entity and a reference point.	e.g. intramercurial, intrapetiolar, intraaxillary	Abstract: Spatial	Position	Lateral	Right?	=	Middle
intra-10	intra-10	The interior of the region indicated by the suffix.	e.g. intracalvarium, intracranium	Abstract: Spatial	Position	Internal	Interior?	>	Interior
ipsi-	ipsi-	Same, on the same side of.	example(s) from: ipsilateral	Abstract: Spatial	Position	Lateral	Sides?	=	Ipsilateral
juxta-	juxta-	Near to.	example(s) from: w:juxtaglomerular apparatus	Abstract: Spatial	Position	Proximal	Near?	>	Near
latero-	latero-	To one side.	example(s) from: w:lateral pectoral nerve	Abstract: Spatial	Position	Lateral	Sides?	∞	Unilateral
levo-	laevo-, lev-, levo-, lævo-	On or to the left.		Abstract: Spatial	Position	Lateral	Right?	<	Left
meco-	meco-	Length or distance.		Abstract: Spatial	Position	Proximal	Near?
medio-	medio-, mesio-	Middle.		Abstract: Spatial	Position	Lateral	Right?	=	Middle
meso-01	mes-01, meso-01	Middle or centre in location/position.	e.g. Mesoamerica, mesohepatectomy, mesoscaphe	Abstract: Spatial	Position	Lateral	Right?	=	Middle
meso-04	mes-04, meso-04	Between.	e.g. mesochannel, mesoclitic, mesolayer	Abstract: Spatial	Position	Internal	Interior?	=	Between
meso-07	mes-07, meso-07	(anatomy) Mesial in location, position, or direction: towards the midline of the body.	e.g. mesoanterior, mesomedial, meson	Abstract: Spatial	Position	Lateral	Right?	=	Mesial
meso-09	mes-09, meso-09	(dentistry) The forward side of a tooth.	e.g. mesocone, mesoflexus, mesoloph	Abstract: Spatial	Position	Horizontal	Anterior?	>	Anterior
meta-01	met-01, meta-01	(anatomy and zoology) Behind.		Abstract: Spatial	Position	Horizontal	In front of?	<	Behind
meta-03	met-03, meta-03	(obsolete, architecture and zoology) Situated between two segments.		Abstract: Spatial	Position	Internal	Interior?	=	Between
mid-2	mid-2	Occupying a middle position.	e.g. mid-shoulder	Abstract: Spatial	Position	Lateral	Right?	=	Middle
nether-	nether-	Low, lower, below, under, beneath. Inferior.		Abstract: Spatial	Position	Vertical	High?	<	Low
noto-1	noto-1	South, southern.		Abstract: Spatial	Position	Cardinal	North?	∨	Cardinal
opistho-	opistho-	Back, behind, rear.	example(s) from: opisthotonus	Abstract: Spatial	Position	Horizontal	Front?	<	Back
ortho-08	orth-08, ortho-08	(organic chemistry) In isomeric benzene derivatives, having the two substituents in adjacent (1,2) positions (compare meta- and para-).	e.g. orthophenylene, orthosubstitution, orthocleavage	Abstract: Spatial	Position	Proximal	Near?	>	Adjacent
out-1	out-1	External to, on the outside of.	e.g. outback, outhouse	Abstract: Spatial	Position	Internal	Inner?	.	Outside
over-1	over-1	Above, higher.	e.g. overbar, overlook	Abstract: Spatial	Position	Vertical	Above?	>	Above
pan-09	pan-09, pano-09	Throughout an area indicated by the suffix.	e.g. panarctic, pancolitis, panfandom	Abstract: Spatial	Position	Internal	Interior?	∞	Throughout
para-03	par-03, para-03	Between.	e.g. paracellular, paraconule, paradiploid	Abstract: Spatial	Position	Internal	Interior?	=	Between
para-04	par-04, para-04	Around, surrounding.	e.g. paracortex, paradiapophysis	Abstract: Spatial	Position	Internal	Interior?	<	Surrounding
para-07	par-07, para-07	Near.	e.g. paranal, parepididymis, parethmoid	Abstract: Spatial	Position	Proximal	Near?	>	Near
para-08	par-08, para-08	On the opposite side of.	e.g. paracavernous	Abstract: Spatial	Position	Lateral	Sides?	≠	Contralateral
para-09	par-09, para-09	Above, over.	e.g. paraductal, paracoronoid, paracondylar	Abstract: Spatial	Position	Vertical	Above?	>	Above
para-17	par-17, para-17	In isomeric benzene derivatives, having the two substituents in opposite (1,4) positions.		Abstract: Spatial	Position	Lateral	Sides?	≠	Contralateral
pend-	pend-	To hang down.		Abstract: Spatial	Position	Vertical	High?	<	Low
peri-1	peri-1	around or surrounding.	e.g. perimeter, meter	Abstract: Spatial	Position	Internal	Interior?	<	Surrounding
peri-2	peri-2	Near.	e.g. perihelion, helion	Abstract: Spatial	Position	Proximal	Near?	>	Near
plesio-	plesio-	Close, near.		Abstract: Spatial	Position	Proximal	Near?	>	Near
pleuro-2	pleur-2, pleuro-2	To the side, lateral.	e.g. pleurocentrum, pleurocoel	Abstract: Spatial	Position	Lateral	Sides?	∞	Unilateral
post-2	post-2	(anatomy) behind.		Abstract: Spatial	Position	Horizontal	Anterior?	<	Posterior
postero-	posterio-, postero-	The posterior; opposite of anterior.		Abstract: Spatial	Position	Horizontal	Anterior?	<	Posterior
pre-1	prae-1, pre-1, præ-1	Before; physically in front of; (anatomy) anterior.	example(s) from: prefix	Abstract: Spatial	Position	Horizontal	Anterior?	>	Anterior
pro-6	pro-6	in front of.		Abstract: Spatial	Position	Horizontal	In front of?	>	In front of
proto-8	prot-8, proto-8	Anterior.	e.g. prototroch, protoconid, protoconule	Abstract: Spatial	Position	Horizontal	Anterior?	>	Anterior
proximo-	proxi-, proxim-, proximo-	Nearby, close to.		Abstract: Spatial	Position	Proximal	Near?	>	Near
rostro-	rostro-	Rostrum; the oral or nasal region of an organism.		Abstract: Spatial	Position	Horizontal	Cranial?	>	Rostral
sidero-2	sidero-2	Sidereal.		Abstract: Spatial	Position		Fixed?	=	Sidereal
sinistro-	sinistr-, sinistro-	Leftwards, to the left.	example(s) from: sinistrocardia	Abstract: Spatial	Position	Lateral	Right?	<	Left
sous-1	sous-1	Under, underneath.	e.g. sousveillance, souterrain, sous-vide	Abstract: Spatial	Position	Vertical	Above?	<	Beneath
sub-1	sub-1, sur-3	Under, beneath.	e.g. subterranean, submarine, subcutaneous	Abstract: Spatial	Position	Vertical	Above?	<	Beneath
super-1	super-1	Located above.	e.g. superoccipital, superlabial, supergastric	Abstract: Spatial	Position	Vertical	Superior?	>	Above
supero-	supero-	Situated above.		Abstract: Spatial	Position	Vertical	Superior?	>	Above
supra-1	supra-1	Above, over, on top. Superior.	e.g. supralimbic, supraduction, supracaudal	Abstract: Spatial	Position	Vertical	Superior?	>	Above
sur-1	sur-1	Above, on top of.	e.g. suranal, surtop, surangular	Abstract: Spatial	Position	Vertical	Above?	>	Above
tele-1	tele-1	Over a distance.	example(s) from: telegraph, telephone, telescope, television	Abstract: Spatial	Position	Proximal	Near?	<	Far
trans-3	trans-3	(chemistry) A compound in which two atoms or groups are situated on opposite sides of some plane of symmetry passing through the compound.	e.g. transacetylase, tranexamic acid, transaldolase	Abstract: Spatial	Position	Lateral	Sides?	≠	Contralateral
ultra-2	ultra-2	Beyond, on the far side of.	e.g. ultraviolet	Abstract: Spatial	Position	Proximal	Near?	.	Furthest
ultra-3	ultra-3	Beyond, outside of.	e.g. ultrasonic	Abstract: Spatial	Position	Internal	Inner?	.	Outside
um-	um-, umb-, umbe-	Around, about, approximately.	example(s) from: umbestound	Abstract: Spatial	Position	Proximal	Near?	>	Near
under-1	under-1	Beneath, under.	e.g. underpass, underground, underneath	Abstract: Spatial	Position	Vertical	Above?	<	Beneath
ventri-	ventr-, ventri-, ventro-	The ventral (belly) side of the body.	example(s) from: ventrodorsal	Abstract: Spatial	Position	Horizontal	Ventral?	>	Ventral

Size

Prefixes used to indicate size (big/small), width (wide/thin), height (tall/short), depth (deep/shallow).

Prefixes categorized as Size, Abstract: Spatial.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
ampl-	ampl-	Large, ample.		Abstract: Spatial	Size		Big?	>	Big
auxo-	aux-, auxo-	Growth, increase.	example(s) from : Auxocardia: enlargement of the heart, auxology	Abstract: Spatial	Size	Change	Increasing?	>
brachy-1	brachy-1	Short, brief.	example(s) from: brachycephalic	Abstract: Spatial	Size	Lateral	Long?	<	Short
brachy-2	brachy-2	Short, small.	example(s) from: brachycephalic	Abstract: Spatial	Size	Vertical	Tall?	<	Short
brevi-	brevi-	Short.		Abstract: Spatial	Size	Vertical	Tall?	<	Short
dino-1	dino-1	Large, dangerous.		Abstract: Spatial	Size	Scary	Big?	>	Big
dolicho-	dolich-, dolicho-	Long.		Abstract: Spatial	Size	Horizontal	Long?	>	Long
giganto-	giganto-	Gigantic, enormous.		Abstract: Spatial	Size		Big?	>>	Big
hypo-4	hyp-4, hypo-4	Having a range which extends from a perfect fourth below the tonic to a perfect fifth above.	examples from : hypolydian, hypodorian, hypomixolydian	Abstract: Spatial	Size	Vertical		>	Upward
hypso-1	hyps-1, hypsi-1, hypso-1	Tall, high in size.	e.g. hypsarrhythmia, hypsodont, hypsicephalic	Abstract: Spatial	Size	Vertical	Tall?	>	Tall
lepto-	lept-, lepto-	Narrow, thin.	example(s) from: leptomeningeal	Abstract: Spatial	Size	Lateral	Wide?	<	Narrow
macro-1	macr-1, macro-1	large.	e.g. macronucleus	Abstract: Spatial	Size		Big?	>	Big
macro-2	macr-2, macro-2	long.	e.g. macrobiotics	Abstract: Spatial	Size	Horizontal	Long?	>	Long
magni-	magni-	Large, big.		Abstract: Spatial	Size		Big?	>	Big
maxi-	maxi-	Larger than usual.	example(s) from: maxi-skirt, maximum	Abstract: Spatial	Size	Normality	Big?	>	Bigger - relative!
megalo-1	meg-11, mega-11, megal-1, megalo-1	Large in size, enormous.	e.g. megalocardia, megalophobia, megalopolis	Abstract: Spatial	Size		Big?	>>	Big
meso-03	mes-03, meso-03	Medium in size.	e.g. mesobrowser, mesocavern, mesohabitat	Abstract: Spatial	Size		Big?	=	Medium
micro-1	micr-1, micro-1	Very small.	example(s) from: microbacillus, microscope	Abstract: Spatial	Size		Big?	.	Small
midi-	midi-	Medium sized.	example(s) from: midi-length, Midibus	Abstract: Spatial	Size		Big?	=	Medium
mini-	mini-	Small.	example(s) from: minimarket, mini-room, minivan	Abstract: Spatial	Size		Big?	<	Small
mydro-	mydro-	Wide.		Abstract: Spatial	Size	Lateral	Wide?	>	Wide
nano-3	nan-3, nano-3	Very small, nanoscale.	e.g. nanoparticle, nanoplankton	Abstract: Spatial	Size		Big?	.	Small
pachy-	pachy-	Thick.	example(s) from: pachyderma, pachyderm	Abstract: Spatial	Size	Lateral	Thick?	>	Thick
pan-05	pan-05, pano-05	Entire, whole, the entirety of the suffixed object or category.	e.g. pancolonoscopy, pangastritis, pangenomic	Abstract: Spatial	Size	Internal		∞
parvo-	parvo-	Small.	example(s) from: w:Parvovirus	Abstract: Spatial	Size		Big?	<	Small
peloro-	peloro-	A morpheme term pertaining to monsters, in the popular sense of "something huge".		Abstract: Spatial	Size	Scary	Big?	>	Big
titano-2	titano-2	Huge, very large, enormous.		Abstract: Spatial	Size		Big?	>>	Big

Abstract: Temporal

Age

Prefixes categorized as Age, Abstract: Temporal.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
anci-	anci-	Ancient.		Abstract: Temporal	Age		New?	<	⏪ Old
antico-	antico-	Old, antiquated.		Abstract: Temporal	Age		New?	<	⏪ Old
archaeo-	archae-, archaeo-, archaio-, archeo-, archæ-, archæo-	Ancient; antediluvian; archaic; old; prehistoric; primitive.	e.g. Simple	Abstract: Temporal	Age		New?	<	⏪ Old
cen-	cen-	Most recent common (e.g. most recent common ancestor).		Abstract: Temporal	Age	Commonality	Older?	>	⏩ Recent
ceno-	ceno-	New, recent.		Abstract: Temporal	Age		New?	>	⏩ New
eteo-	eteo-	An ancient or ancestral language (or form of a language), dating from a time before it came into contact with another language; particularly one which had considerable influence, or which later displaced it entirely.	e.g. Eteocretan, Eteocypriot	Abstract: Temporal	Age	Influence	Older?	<	⏪ Old
inter-22	inter-22	Spanning across multiple time periods indicated by the suffix.	e.g. intergenerational, intersecular	Abstract: Temporal	Age		Long?	<	⏪ Older
inter-31	inter-31	Intermediate in time, between time periods indicated by the root.	e.g. interlocution, interact, intercycle	Abstract: Temporal	Age		New?	=	⏺ Intermediate
neo-	neo-	New, recent.	example(s) from: neolithic, neoether	Abstract: Temporal	Age		New?	>	⏩ New
new-	new-	New, recent.		Abstract: Temporal	Age		New?	>	⏩ New
paleo-	palae-, palaeo-, pale-, paleo-, palæ-, palæo-	Very old, prehistoric, ancient. very early, primitive, archaic.	example(s) from: paleolithic	Abstract: Temporal	Age		New?	<	⏪ Old
presby-	presby-, presbyo-	Elder, old.	example(s) from: presbyopia, presbycusis	Abstract: Temporal	Age		New?	<	⏪ Old
proto-2	prot-2, proto-2	Original, older.	e.g. protograph, protolacteal, prototype, protoplasm	Abstract: Temporal	Age		New?	<	⏪ Old
sen-	sen-	Old.		Abstract: Temporal	Age		New?	<	⏪ Old

Dynamics

Prefixes categorized as Dynamics, Abstract: Temporal.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acro-07	acr-07, acro-07, akro-07	The peak of a wave or cycle; accented.	e.g. acrophase, acrostatic	Abstract: Temporal	Dynamics			∧
acu-3	acu-3	Sudden.		Abstract: Temporal	Dynamics			≠	Temporary
again-1	again-1	Once more, again.	e.g. againrising	Abstract: Temporal	Dynamics		Again?	🔁
ambi-4	ambi-4, ambo-4	Alternating between two categories.	e.g. ambilocal, ambivalent, ambiquitous	Abstract: Temporal	Dynamics		Balanced?	🔀
amphi-6	amph-6, amphi-6, ampho-6	Happening in two stages.	e.g. amphibiotic, amphidromous	Abstract: Temporal	Dynamics			>	Multi-stage
ana-2	ana-2	Again.	e.g. anabaptist, anataxis, anastatic	Abstract: Temporal	Dynamics		Again?	🔁
co-04	co-04	Simultaneously, done or able to do at the same time.	e.g. cobirthing, cosexual, cocluster, coagglutination	Abstract: Temporal	Dynamics			=
con-05	col-05, com-05, con-05, cor-05	Synchronous or simultaneous with the suffix.	e.g. connascent, concreate, congeneration	Abstract: Temporal	Dynamics			=
cross-09	cross-09	Involving two or more at the same time; coincident.	e.g. crossbreak, crosspost, crosscurrent	Abstract: Temporal	Dynamics			=
cycl-2	cycl-2, cyclo-2	Cycle, cyclical.	example(s) from: cyclosis, cyclops, tricycle	Abstract: Temporal	Dynamics			🔁	Cyclical
ed-1	ed-1	Again.	e.g. regrowth	Abstract: Temporal	Dynamics		Again?	🔁
ever-	ever-	Always.		Abstract: Temporal	Dynamics			∞	Permanent
hetero-11	heter-11, hetero-11	Alternating.	e.g. heterogamous, heteroclitic	Abstract: Temporal	Dynamics			🔀
inter-14	inter-14	Intermittently: the suffixed verb is done between or among temporal entities; also forming nouns and adjectives derived from the verb form.	e.g. intermention	Abstract: Temporal	Dynamics			🔀
inter-16	inter-16	Alternating: a sequence of alternating kinds of the suffix.	e.g. interlaminate, interplant, interbed	Abstract: Temporal	Dynamics			🔀
oxysm-	oxysm-, oxysmo-	Sudden.	e.g. paroxysm	Abstract: Temporal	Dynamics			≠	Temporary
palin-	pali-, palin-	Again, repeated, recur.		Abstract: Temporal	Dynamics		Again?	🔁	Repeat
perma-	perma-	Permanent.		Abstract: Temporal	Dynamics			∞	Permanent
re-1	re-1	Again.	e.g. renew, recommit, reheat	Abstract: Temporal	Dynamics		Again?	🔁
semper-	semper-	Always, unvarying.	e.g. semperannual, sempergreen, semperjuvenescent	Abstract: Temporal	Dynamics			∞	Permanent
syn-3	sy-3, syl-3, sym-3, syn-3, sys-3	Concomitant, at the same time.	e.g. synesthesia	Abstract: Temporal	Dynamics			=
synchro-	synchro-	At the same time, synchronous.		Abstract: Temporal	Dynamics			=	Synchronous
tempo-	tempo-	Tempo, time.		Abstract: Temporal	Dynamics			∧

Order

Prefixes categorized as Order, Abstract: Temporal.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-06	a-06	(archaic, dialectal) At such a time.		Abstract: Temporal	Order	Sequential	After?	∧	At
a-08	a-08	General indicator of a participle, often a past particple.	e.g. aware, alike	Abstract: Temporal	Order	Past		<	⏪ Earlier
a-09	a-09	(Devon) Used to form the past participle of a verb.	e.g. a-gone, a-seen	Abstract: Temporal	Order	Past		<	⏪ Earlier
afore-	afore-	Previously, before.		Abstract: Temporal	Order	Sequential	After?	<	⏪ Earlier
after-3	after-3	With prepositional effect, forming compound words denoting something which follows the second element of the compound, and is less intense or significant.	examples from : afterglow, aftershock, afterthought	Abstract: Temporal	Order	Sequential	After?	>	⏩ Following
ante-1	ante-1	Prior to in time.	example(s) from : antebellum	Abstract: Temporal	Order	Sequential	After?	<	⏪ Earlier
après-	après-	Used to describe an event, phenomenon, etc. that occurs after a specified activity; after-.		Abstract: Temporal	Order	Stage		>	⏩ Following
arch-5	arch-5, archa-5, arche-5, archi-5, archo-5	First; original.	e.g. archangel, archdevil, archsin	Abstract: Temporal	Order	Oldest?		.	⏮ Earliest
co-14	co-14	During the same time period as the suffix.	e.g. coseasonal, coseismic, cotemporality	Abstract: Temporal	Order	Sequential	After?	=	= During
eo-	eo-	Earliest, ancient.		Abstract: Temporal	Order	Old?		.	⏮ Earliest
epi-18	epi-18	After in time.	e.g. epiclassical, epigenesis, Epipaleolithic	Abstract: Temporal	Order	Sequential	After?	>	⏩ Following
ex-3	ex-3	former.	e.g. ex-husband, ex-president, ex-wife	Abstract: Temporal	Order	Former		<	⏪ Earlier
fore-01	fore-01	Before: the suffix is happening earlier in time.	e.g. forebusy, forehear, forechosen	Abstract: Temporal	Order	Sequential	After?	<	⏪ Earlier
fore-02	fore-02	The early stage of the suffixed time period.	e.g. foredawn, foreday, foreyear	Abstract: Temporal	Order	Stage		<	⏪ Earlier
fore-03	fore-03	Directly or immediately preceding in time.	e.g. forebirth, foreking, forehammer	Abstract: Temporal	Order	Sequential	After?	<<	⏪ Earlier
fore-11	fore-11	Forward in temporal direction, anticipating.	e.g. foredawn, foreglimpse, forecast	Abstract: Temporal	Order	Past		>	⏩ Forward
inter-04	inter-04	A temporal position which is in between two (or more) of the kind of event indicated by the suffix.	e.g. interlitter, intermonth, interoccurrence	Abstract: Temporal	Order	Sequential	After?	=	= Between
inter-05	inter-05	A temporal position which is in between two successive events of the kind indicated by the suffix.	e.g. interday, interdiastolic, interpausal	Abstract: Temporal	Order	Sequential	After?	=	= Between
inter-30	inter-30	Interlude: a time period or event which is intermediate between other time periods. The suffix indicates what the intermediate event is and not the surrounding periods.	e.g. interpause, interact, intercadence	Abstract: Temporal	Order	Stage		=	= During
intra-03	intra-03	During, within a time period.	e.g. intraoperational, intradiurnal, intradecadal	Abstract: Temporal	Order	Stage		=	= During
meso-10	mes-10, meso-10	The middle of a time period, or medium in duration.	e.g. mesocenozoic, mesocratic, Mesolithic	Abstract: Temporal	Order	Between		=	= Between
meta-02	met-02, meta-02	(botany and zoology) Later or subsequent.		Abstract: Temporal	Order	Sequential	After?	>	⏩ Following
mid-1	mid-1	Denoting the middle part.	e.g. mid-1930s, mid-30s, midlife	Abstract: Temporal	Order	Stage		=	= During
mid-5	mid-5	During, in the middle of doing something.	e.g. mid-jump	Abstract: Temporal	Order	Stage		=	= During
ob-5	ob-5, os-5	Before.	e.g. obvention, observant	Abstract: Temporal	Order	Sequential	After?	<	⏪ Earlier
or-3	or-3	From the outset; original.	e.g. ort, orgulous	Abstract: Temporal	Order	Sequential	After?	.	⏮ Earliest
ortho-11	orth-11, ortho-11	Original, primary.	e.g. orthonasal	Abstract: Temporal	Order	Sequential	After?	.	⏮ Earliest
peri-3	peri-3	during.	e.g. peri-apocalyptic, apocalyptic, perinatal, natal	Abstract: Temporal	Order	Stage		=	= During
post-1	post-1	after, later.	example(s) from: postfix, postpone, postscript	Abstract: Temporal	Order	Sequential	After?	>	⏩ Following
pre-2	prae-2, pre-2, præ-2	Before; earlier in time; beforehand.	example(s) from: predict, prepare, preview, preschool, prewrite	Abstract: Temporal	Order	Sequential	After?	<	⏪ Earlier
prepro-	prepo-, prepro-	Denoting a precursor.		Abstract: Temporal	Order	Former		<	⏪ Earlier
prim-1	prim-1, prime-1	First, earliest.	example(s) from: primary	Abstract: Temporal	Order	Sequential	After?	.	⏮ Earliest
pro-4	pro-4	earlier; prior.		Abstract: Temporal	Order	Sequential	After?	<	⏪ Earlier
protero-	protero-	First, earliest, early.		Abstract: Temporal	Order	Sequential	After?	.	⏮ Earliest
telo-	telo-	End, complete.		Abstract: Temporal	Order	Sequential	After?	∞	⏭ Final
to-05	to-05	Current, the current form of the suffixed time. Forming nouns.	e.g. today, tonight, tosol	Abstract: Temporal	Order			=	⏺ Current
to-06	to-06	On (this) time, which is a fixed point in time. Forming adverbs.	e.g. today, tomorrow, tomorn	Abstract: Temporal	Order	Sequential	After?	∧	At
to-07	to-07	During the suffixed time. Forming adverbs.	e.g. today, tonight, toyear	Abstract: Temporal	Order	Sequential	After?	=	= During
to-09	to-09	At, at the suffixed time. Forming an unfixed point in time, rather than a duration.	e.g. tomorrow, tofall, together	Abstract: Temporal	Order	Sequential	After?	∧	At
ultima-	ultima-	Last, final.		Abstract: Temporal	Order	Sequential	After?	∞	⏭ Final
ur-	ur-	Original, primitive, earliest.	e.g. ur-ancestor, urlanguage	Abstract: Temporal	Order	Age		.	⏮ Earliest
y-	a-08, i-1, y-	Obsolete prefix used to form past participles.	example(s) from: yclad, yclept (both archaic words)	Abstract: Temporal	Order	Past			⏪ Earlier
yester-	yester-	Yesterday, previous.		Abstract: Temporal	Order	Sequential	After?	<	⏪ Earlier

Academic disciplines

Prefixes used to evoke or refer to an academic discipline either as a social institution (e.g. the scientific community) or as as set of methodological approaches (e.g. scientific methodologies).

Health sciences

Prefixes used for the health sciences.

Prefixes categorized as Health sciences, Academic disciplines.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
anatomico-	anatomico-, anatomo-	Anatomy.		Academic disciplines	Health sciences
epi-03	epi-03	(biology) Relating to epigenetics.	e.g. epichromosomal, epiclone, epigenome	Academic disciplines	Health sciences
epi-13	epi-13	(biology) Epidemiology.	e.g. epizootic, epornitic	Academic disciplines	Health sciences
geno-1	gen-1, geno-1	Genetics.	e.g. genome	Academic disciplines	Health sciences
medico-	medico-	Medicine (“profession”); medical.		Academic disciplines	Health sciences
nutri-	nutri-	Nutrition.		Academic disciplines	Health sciences
ortho-14	orth-14, ortho-14	(medicine) Orthopaedics.	e.g. orthogeriatrics, orthosurgeon, orthoroentgenography	Academic disciplines	Health sciences
pharmaco-	pharma-, pharmac-, pharmaco-	Pertaining to pharmaceuticals or pharmacology.	e.g. pharmacokinetic, pharmacoenhancer	Academic disciplines	Health sciences
psycho-	psych-, psycho-	Mind, brain, psychology.	e.g. psychostimulant, psychoacoustics, psychosocial	Academic disciplines	Health sciences

Linguistics

Prefixes used for components and divisions of linguistics.

Prefixes categorized as Linguistics, Academic disciplines.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
grammatico-	grammatico-	Grammar.		Academic disciplines	Linguistics
ideo-	ideo-	Idea, concept.	example(s) from: ideograph, ideology	Academic disciplines	Linguistics
lexi-	lexi-	Word, lexeme.		Academic disciplines	Linguistics
lexico-	lexico-	Words, speech.		Academic disciplines	Linguistics
logo-	log-, logo-	Words.	e.g. logogram, logopathy, logorrhea	Academic disciplines	Linguistics
melo-	melo-	Melody.		Academic disciplines	Linguistics
metro-4	metr-4, metro-4	Meter.		Academic disciplines	Linguistics
nomen-	nomen-	Name.		Academic disciplines	Linguistics
nomino-	nomino-	The nominative case.		Academic disciplines	Linguistics
nomo-2	nom-2, nomo-2	Names.		Academic disciplines	Linguistics
onomato-	onomato-	Name; word.		Academic disciplines	Linguistics
semanto-	semanto-	Semantic.		Academic disciplines	Linguistics
semio-	semio-	Sign, symbol, signifier.		Academic disciplines	Linguistics
tono-2	ton-2, tono-2	Relating to tone in linguistics.	e.g. tonogenesis, tonomorpheme, tonomorphology	Academic disciplines	Linguistics

Mathematical

Prefixes used for academic fields structured around formal logic and mathematical methodologies.

Prefixes categorized as Mathematical, Academic disciplines.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
arithmo-	arithmo-	Pertaining to numbers, arithmetic.		Academic disciplines	Mathematical
digi-2	digi-2, digit-2	Digits: numbers.	e.g. digitize	Academic disciplines	Mathematical
info-	info-	Information.		Academic disciplines	Mathematical
logico-	logico-	Logic.	e.g. logico-linguistic, logicomathematical	Academic disciplines	Mathematical
mathematico-	mathematico-	Mathematics, mathematical.		Academic disciplines	Mathematical
metro-3	metr-3, metro-3	Measurement, the study of measurement.	e.g. metrology, metromania	Academic disciplines	Mathematical
numero-	numero-	Number, numbers.		Academic disciplines	Mathematical

Natural

Prefixes used for the natural sciences.

Prefixes categorized as Natural, Academic disciplines.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
bio-	bi-12, bio-	Life.	example(s) from: biology, biotic	Academic disciplines	Natural
chemo-	chem-, chemi-, chemico-, chemo-	Chemicals, chemistry.	example(s) from: chemical, chemistry, chemotherapy	Academic disciplines	Natural
chrono-	chron-, chrono-	Time.		Academic disciplines	Natural
demo-2	demo-2	Population.	e.g. demogenetics, demography, demology	Academic disciplines	Natural
eco-1	eco-1	Habitat or environment.	example(s) from: ecosystem	Academic disciplines	Natural
eco-2	eco-2	Ecology.		Academic disciplines	Natural
enviro-1	enviro-1	Environment, environmental.		Academic disciplines	Natural
geo-2	geo-2	Geography.	e.g. geopolitical, geolocation	Academic disciplines	Natural
mechano-	mechano-	Mechanical.	e.g. mechanostability, mechanosensation, mechanofusion	Academic disciplines	Natural
organo-2	organo-2	Organic. Organic chemistry.		Academic disciplines	Natural
physi-	phys-, physi-	Nature; physical.		Academic disciplines	Natural
physico-	physico-	Physical, physics.		Academic disciplines	Natural
physio-	physio-	Nature, natural, physical. Physiology, physiotherapy.		Academic disciplines	Natural
scientifico-	scientifico-	Science; scientific.		Academic disciplines	Natural

Societal

Prefixes used for the social sciences and humanities, other than linguistics.

Prefixes categorized as Societal, Academic disciplines.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
anthropo-2	anthro-2, anthrop-2, anthropo-2	Anthropology.	e.g. anthropolinguistics, anthroposociological	Academic disciplines	Societal
demo-3	demo-3	Demography.	e.g. demographer, demolinguistic, demoeconomic	Academic disciplines	Societal
econo-	econo-	Economics; economy.		Academic disciplines	Societal
ethno-	ethn-, ethno-	Race, people, cultural group.		Academic disciplines	Societal
etho-	etho-	Ethics. Essential character and behaviour patterns.		Academic disciplines	Societal
historico-	historico-, historio-, historios-	History, historiography.		Academic disciplines	Societal
linguo-2	ling-2, lingua-2, linguo-2	Language, linguistics.	e.g. linguocultural, lingueme, linguonym	Academic disciplines	Societal
politico-	politico-	Political, politics, political science.		Academic disciplines	Societal
racio-	racio-	Study of race/racism.	e.g. raciolinguistics, raciology	Academic disciplines	Societal
sexuo-	sexuo-	Of or concerning sexuality.	e.g. sexuoerotic, sexuo-economic	Academic disciplines	Societal
socio-	soci-, socio-	Social, society, sociological.	example(s) from: sociopath	Academic disciplines	Societal
techno-	techno-	Pertaining to technology. Skill, craft.		Academic disciplines	Societal

Body parts

Body parts, both macro (e.g. skeleto-) and micro (e.g. karyo-). Includes body parts of non-humans (e.g. gills). Includes bodily fluids such as blood. Note: anatomical terms of direction/location/movement are categorized under Abstract.

Anatomical regions

Anatomical terms for areas of the body that are not a specific organ, muscle, etc. For example, appendages (e.g. wings, limbs, talis) are anatomical regions.

Prefixes categorized as Anatomical regions, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
abdomin-	abdomin-, abdomino-	The abdomen.	example(s) from : abdomen, abdominal	Body parts	Anatomical regions
acro-01	acr-01, acro-01, akro-01	The extremities: limbs, head, fingers, toes, etc.	e.g. acroarthritis, acroasphyxia, acrodysplasia	Body parts	Anatomical regions
axillo-	axill-, axillo-	Armpit .	example(s) from : Axilla	Body parts	Anatomical regions
brachio-	brachi-, brachio-	Arms, branches.	e.g. brachioplasty, brachiopod, brachiocephalic	Body parts	Anatomical regions
bucco-	bucc-, bucco-	Cheeks.	example(s) from: buccolabial	Body parts	Anatomical regions
capit-	capit-	Head.	example(s) from: capitation, decapitation	Body parts	Anatomical regions
carpo-	carp-, carpo-	Area around human wrist.	example(s) from: carpal, carpopedal spasm, metacarpal	Body parts	Anatomical regions
caudo-1	caudo-1	The tail.		Body parts	Anatomical regions
cephalo-	cephal-, cephalo-	Brain or head.	example(s) from: cephalalgy, hydrocephalus	Body parts	Anatomical regions
cervico-	cervic-, cervici-, cervico-	The cervix; neck.	example(s) from: cervical vertebrae, cervicodorsal	Body parts	Anatomical regions
cheilo-	cheil-, cheilo-	Lips.	example(s) from: angular cheilitis	Body parts	Anatomical regions
chiro-1	cheir-1, cheiro-1, chir-1, chiro-1	Hand.	e.g. chiralgia, chiropatagium	Body parts	Anatomical regions
corporo-	corporo-	Body.		Body parts	Anatomical regions
cox-	cox-	The hips, hip joint.	example(s) from: coxopodite	Body parts	Anatomical regions
cruro-	cruro-	Relating to a limb or a hiatus.		Body parts	Anatomical regions
cubito-	cubito-	Elbow.		Body parts	Anatomical regions
dactyl-	dactyl-, dactylo-	Fingers or toes.		Body parts	Anatomical regions
digi-1	digi-1, digit-1	Digits: fingers, toes.	e.g. digitigrade, digitate	Body parts	Anatomical regions
episio-	episi-, episio-	Refers to the vulvar or perineal area in relation to the surgical procedures episiotomy, episiorrhaphy, or episioplasty.	example(s) from: episiotomy	Body parts	Anatomical regions
facio-	faci-, facio-	The face.	example(s) from: facioplegic, facial	Body parts	Anatomical regions
genio-	genio-	Chin.		Body parts	Anatomical regions
genu-	genu-	The knee.	example(s) from: w:genu valgum	Body parts	Anatomical regions
gnatho-	gnath-, gnatho-	The jaw.	example(s) from: gnathodynamometer	Body parts	Anatomical regions
gon-3	gon-3, gono-3	Knee.	e.g. gonarthritis	Body parts	Anatomical regions
inguino-	inguino-	The groin.		Body parts	Anatomical regions
labio-	labi-, labio-	The lips.	example(s) from: labiodental	Body parts	Anatomical regions
lobo-	lobo-	Lobe (brain or lungs).		Body parts	Anatomical regions
lumbo-	lumb-, lumba-, lumbo-	Lower back.	example(s) from: w:lumbar vertebrae	Body parts	Anatomical regions
mammo-	mamm-, mammo-	Breasts.	example(s) from: mammogram	Body parts	Anatomical regions
manu-	manu-	Hand.	example(s) from: manufacture	Body parts	Anatomical regions
maxillo-	maxillo-	The jaw.		Body parts	Anatomical regions
mento-	mento-	The chin.		Body parts	Anatomical regions
omo-	om-, omo-	The shoulder.	example(s) from: omoplate	Body parts	Anatomical regions
omphalo-	omphal-, omphalo-	The navel.	example(s) from: omphalotomy	Body parts	Anatomical regions
ophryo-	ophry-, ophryo-	The eyebrow.		Body parts	Anatomical regions
oscheo-	oscheo-	The scrotum.		Body parts	Anatomical regions
palato-	palat-, palato-	Palate, roof of mouth.		Body parts	Anatomical regions
para-18	par-18, para-18	Affecting or concerning the lower body.	e.g. paranesthesia, paraballism	Body parts	Anatomical regions
pectoro-	pector-, pectoro-	Chest.	example(s) from: pectoralgia, pectoriloquy, pectorophony	Body parts	Anatomical regions
pedi-	ped-, pedi-	Foot, feet.	e.g. pedal, pedestrian	Body parts	Anatomical regions
pedo-1	paedo-1', pedo-1', pædo-1'	Feet.		Body parts	Anatomical regions
pelvi-	pelv-, pelvi-, pelvo-	Pelvis.	e.g. pelviureteric, pelviperineal, pelviperitonitis	Body parts	Anatomical regions
perineo-	perineo-, peritone-	Perineum.		Body parts	Anatomical regions
phimo-	phimo-	Muzzle.		Body parts	Anatomical regions
pinni-1	pinni-1	Wings.		Body parts	Anatomical regions
planto-	planto-	Sole of the foot.		Body parts	Anatomical regions
podo-	pod-, podo-	Feet.	example(s) from: podiatrist	Body parts	Anatomical regions
prosopo-	prosop-, prosopo-	The face.	example(s) from: prosopagnosia	Body parts	Anatomical regions
ptero-1	pter-1, ptero-1, ptery-1	Wing.	e.g. Pterosaur, pterophorid, pterochorous	Body parts	Anatomical regions
pterygo-1	pteryg-1, pterygo-1	Relating to the wing, or fin.	e.g. pterygoblast, pterygobranchiate	Body parts	Anatomical regions
pygo-	pygo-	Buttocks.		Body parts	Anatomical regions
rhyncho-	rhyncho-	Beak, snout.		Body parts	Anatomical regions
scroto-	scroto-	Relating to the scrotum.		Body parts	Anatomical regions
somato-	somat-, somatico-, somato-	The body. Bodily.	example(s) from: somatic	Body parts	Anatomical regions
stetho-	steth-, stetho-	The chest.	example(s) from: stethoscope	Body parts	Anatomical regions
tarso-	tarso-	Ankle, foot.		Body parts	Anatomical regions
thoraco-	thora-, thorac-, thoraci-, thoracico-, thoraco-, thorato-	The thorax. Chest.	example(s) from: thoracic spine, thorax	Body parts	Anatomical regions
trachelo-	trachel-, trachelo-	The neck.	example(s) from: Tracheloplasty	Body parts	Anatomical regions
umbilic-	umbilic-, umbilico-	Umbilical cord, navel.	e.g. umbilicoplacental, umbilicoplasty	Body parts	Anatomical regions
urano-2	urano-2	Palate.		Body parts	Anatomical regions
uro-2	uro-	Tail.		Body parts	Anatomical regions
vulvo-	vulvo-	Pertaining to the vulva.		Body parts	Anatomical regions

Bodily fluids

Prefixes used to indicate bodily fluids in a healthy body. Fluids such as pus will be found under Pathological.

Prefixes categorized as Bodily fluids, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
bili-	bili-, bilio-	Bile.	example(s) from: Cholemiacholaemia (UK) / cholemia (US), cholecystitis	Body parts	Bodily fluids
blenno-	blenno-	Mucus.		Body parts	Bodily fluids
chole-	chol-, chole-	Pertaining to bile or its production.		Body parts	Bodily fluids
chylo-	chylo-	Chyle.		Body parts	Bodily fluids
galacto-	galact-, galacto-	Milk.	example(s) from: galactorrhea, galaxy	Body parts	Bodily fluids
haemo-	haem-, haema-, haemat-, haemato-, haemo-, hem-, hema-, hemat-, hemato-, hemo-, hæm-, hæmat-, hæmato-, hæmo-	Blood.	example(s) from: hematology, older form haematology	Body parts	Bodily fluids
lacto-	lact-, lacti-, lacto-	Milk.	example(s) from: lactation, lactose	Body parts	Bodily fluids
lympho-	lymph-, lympho-	Lymph.	example(s) from: lymphedema	Body parts	Bodily fluids
muco-	muci-, muco-	Mucus.		Body parts	Bodily fluids
myxo-	myx-, myxo-	Mucus.	example(s) from: myxoma	Body parts	Bodily fluids
physo-	physo-	Air, gas, particularly in an organism (e.g. air sac).	e.g. physograde, physogastry, physometra	Body parts	Bodily fluids
ptyalo-	ptyalo-	Saliva.		Body parts	Bodily fluids
sangui-	sangui-, sanguine-	Blood.	e.g. sanguivorous, sanguify	Body parts	Bodily fluids
sebo-	sebace-, sebo-	Sebum.		Body parts	Bodily fluids
sero-	sero-	Serum; presence in blood.		Body parts	Bodily fluids
sialo-	sial-, sialo-	Saliva.	example(s) from: sialagogue	Body parts	Bodily fluids
sudo-	sudo-	Sweat.		Body parts	Bodily fluids
synovo-	synovo-	Synovia.		Body parts	Bodily fluids

Bones

Prefixes used to indicate bones. Not limited to human bones.

Prefixes categorized as Bones, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acromio-	acromio-	Acromion; the outermost point of the shoulder blade.		Body parts	Bones
astragalo-	astragalo-	Pertaining to the astragalus, the anklebone.		Body parts	Bones
atlanto-	atlant-, atlanto-, atlo-	Atlas. The uppermost vertebra of the cervical spine.		Body parts	Bones
calcaneo-	calcaneo-	Calcaneus.		Body parts	Bones
cleido-	cleido-	Clavicle.		Body parts	Bones
condylo-	condylo-	Condyle.		Body parts	Bones
coraco-	coraco-	Coracoid process.		Body parts	Bones
cost-	cost-, costo-	Ribs.	example(s) from: costochondral	Body parts	Bones
ethmo-	ethmo-	Ethmoid bone.	e.g. ethmocephaly, ethmoturbinate, ethmoidectomy	Body parts	Bones
femoro-	femoro-	The femur.		Body parts	Bones
humero-	humer-, humero-	Humerus.	e.g. humerodorsal, humerocubital	Body parts	Bones
hyo-	hyo-	Hyoid bone.		Body parts	Bones
incudo-	incudo-	Incus bone.		Body parts	Bones
ischio-	ischio-	The ischium.	example(s) from: w:ischioanal fossa	Body parts	Bones
mandibulo-	mandibulo-	Mandible.		Body parts	Bones
metacarpo-	metacarp-, metacarpo-	Metacarpals.		Body parts	Bones
metatarso-	metatars-, metatarso-	Metatarsals.		Body parts	Bones
myel-	myel-, myelo-	Bone marrow, spinal cord.	example(s) from: w:myelin sheath, myeloblast	Body parts	Bones
occipito-	occipit-, occipito-	The occipital bone.		Body parts	Bones
ossiculo-	ossiculo-	Ossicule.		Body parts	Bones
osteo-	osse-, osseo-, ossi-, ost-, oste-, osteo-	Bone, bones.	example(s) from: w:peripheral ossifying fibroma, osseous	Body parts	Bones
parieto-	parieto-	Pareital bone.		Body parts	Bones
patello-	patello-	Patella.		Body parts	Bones
perone-	perone-	Fibula.		Body parts	Bones
pterygo-3	pteryg-3, pterygo-3	Pterygoid. Of, pertaining to or lying in the region of the inferior part of the sphenoid bone of the vertebrate skull.	e.g. pterygomalar	Body parts	Bones
pubo-	pubo-	Pubis.		Body parts	Bones
rachi-	rachi-, rhachi-, rhachio-	The spine.	example(s) from: rachial, rachialgia, rachidian, rachiopathy	Body parts	Bones
radio-3	radi-3, radio-3	Radius (bone).	e.g. radiobicipital, radioneuritis	Body parts	Bones
sacro-	sacr-, sacro-	Sacrum.		Body parts	Bones
scapulo-	scapul-, scapula-, scapulo-	Scapula.	example(s) from: scapulothoracic, w:facioscapulohumeral muscular dystrophy	Body parts	Bones
skeleto-	skeleto-	Skeleton.		Body parts	Bones
spino-	spino-	Spine, vertebra.		Body parts	Bones
spondylo-	spondyl-, spondylo-	The spine.	example(s) from: spondylitis	Body parts	Bones
sterno-	stern-, sterno-	Sternum.		Body parts	Bones
stylo-2	stylo-2	Styloid process.		Body parts	Bones
talo-	talo-	Talus.		Body parts	Bones
tars-	tars-	Of or relating to the tarsus.		Body parts	Bones
tibio-	tibio-	Tibia.		Body parts	Bones
ulno-	ulno-	The ulna bone.		Body parts	Bones
vertebro-	vertebro-	Vertebra.		Body parts	Bones
zygomatico-	zygomatico-	Zygomatic.		Body parts	Bones

Brain

Parts of brains.

Prefixes categorized as Brain, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
amygdalo-	amygdal-, amygdalo-	Amygdala.		Body parts	Brain
cerebello-	cerebell-, cerebello-	Cerebellum.	example(s) from: cerebellum	Body parts	Brain
cerebro-	cerebro-	The brain.	example(s) from: cerebrology	Body parts	Brain
cingulo-	cingulo-	Cingulum.		Body parts	Brain
colliculo-	colliculo-	Pertaining to the inferior colliculus or superior colliculus.		Body parts	Brain
cortico-	cortic-, cortico-	Cortex, usually the adrenal cortex or the cerebral cortex.	example(s) from: corticosteroid	Body parts	Brain
cranio-	crani-, cranio-	Cranium.	example(s) from: craniology	Body parts	Brain
encephalo-	encephal-, encephalo-	The brain.	example(s) from: encephalogram	Body parts	Brain
hypothalamo-	hypothalamo-	Hypothalamus.		Body parts	Brain
noo-	noo-	The mind.		Body parts	Brain
olivo-	olivo-	Olivary body.		Body parts	Brain
phreno-1	phren-1, phreni-1, phrenic-1, phrenico-1, phreno-1	Mind.	e.g. phrenology, aphrenia, phrenopathy	Body parts	Brain
pinealo-	pineal-, pinealo-	Pineal gland.		Body parts	Brain
pituitaro-	pituitaro-	Pituitary gland.		Body parts	Brain
rubr-	rubr-, rubro-	The red nucleus of the brain.	example(s) from: rubrospinal	Body parts	Brain
striato-	striato-	Striatum.		Body parts	Brain
temporo-	temporo-	Temporal; temples .		Body parts	Brain
thalamo-	thalamo-, thalmo-	Thalamus.		Body parts	Brain
velo-2	velo-2	Velum.		Body parts	Brain

Cavities

Names for different kinds of cavities and depressions in organs and other parts of the body, such as chambers of the heart.

Prefixes categorized as Cavities, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
alveolo-	alveol-, alveolo-	Alveolar.		Body parts	Cavities
atrio-	atri-, atrio-	Atrium of the heart.	example(s) from : atrioventricular	Body parts	Cavities
coelo-2	cele-2, celo-2, coel-2, coelo-2, cœlo-2	Abdominal cavity.		Body parts	Cavities
culdo-	culdo-	Cul-de-sac of Douglas, rectouterine pouch.		Body parts	Cavities
folliculo-	folliculo-	Follicule.		Body parts	Cavities
fovea-	fovea-	Small pit or depression in an organ; Fovea centralis.		Body parts	Cavities
orbito-	orbito-	Orbit.		Body parts	Cavities
poro-	por-, poro-	Pores.	e.g. porocalyx, porotaxy, poroscopy	Body parts	Cavities
sinuso-	sino-, sinus-, sinuso-	Sinus.	example(s) from: sinusitis	Body parts	Cavities
ventriculo-	ventricul-, ventriculo-	Ventricle.	example(s) from: w:cardiac ventriculography, w:atrioventricular node	Body parts	Cavities

Cellular

Prefixes for the parts of cells, such as cilia or organelles.

Prefixes categorized as Cellular, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
cili-	cili-, cilio-	Cilium.	e.g. ciliogenesis, ciliopathy	Body parts	Cellular
cyto-	cyt-, cyto-	Cell.	example(s) from: cytokine, leukocyte, cytoplasm	Body parts	Cellular
histo-	hist-, histi-, histio-, histo-	Tissue.	example(s) from: histology	Body parts	Cellular
karyo-	kary-, karyo-	The nucleus.	e.g. karyotype, karyomiton, karyoplasm	Body parts	Cellular
plasto-1	plasto-1	Plastid.		Body parts	Cellular

Connective tissues

Names of connective tissues in bodies.

Prefixes categorized as Connective tissues, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
adipo-	adip-, adipo-	Adipose; fat.	example(s) from : adipocyte	Body parts	Connective tissues
carn-	carn-	Flesh.		Body parts	Connective tissues
chondro-2	chondrio-2, chondro-2	Cartilage.	e.g. chondrodynia, chondroinductive, chondroprotein	Body parts	Connective tissues
crico-	crico-	Of or pertaining to the cricoid cartilage.		Body parts	Connective tissues
fascio-	fascio-	Fascia.	e.g. fasciocutaneous, fasciotomy	Body parts	Connective tissues
lipo-	lip-, lipo-	Fat.	example(s) from: liposuction	Body parts	Connective tissues
sarco-	sarc-, sarco-	Flesh.	example(s) from: sarcoma, sarcoidosis	Body parts	Connective tissues
steato-	steato-	Fat.		Body parts	Connective tissues
syndesmo-	syndesmo-	Connective tissue.		Body parts	Connective tissues
teno-	tendo-, teno-	Tendon.		Body parts	Connective tissues

Ears

Parts of ears

Prefixes categorized as Ears, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
auriculo-	auricu-, auriculo-	The auricle of the heart, or the external ear.		Body parts	Ears
cochleo-	cochleo-	Cochlea.		Body parts	Ears
sacculo-	sacculo-	Sacculus.	e.g. sacculocochlear, sacculoutricular, sacculolagenar	Body parts	Ears
staped-	staped-	Stapes in ear.		Body parts	Ears
tympano-	tympan-, tympano-	The eardrum.	example(s) from: w:Tympanocentesis, w:Tensor tympani	Body parts	Ears
utriculo-	utriculo-	utricle.		Body parts	Ears

Eyes

Parts of ears.

Prefixes categorized as Eyes, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
cantho-	cantho-	Canthus; corner of the eye.		Body parts	Eyes
coreo-	coreo-	Pupil of the eye.		Body parts	Eyes
corneo-	corneo-	Cornea.		Body parts	Eyes
irid-	iri-, irid-, irido-, iris-, irrido-	The iris.	example(s) from: iridectomy	Body parts	Eyes
kerato-	kerat-, kerato-	Cornea.<.	example(s) from: keratoscope	Body parts	Eyes
retino-	retino-	The retina.		Body parts	Eyes
sclero-2	scler-2, sclero-2	Sclera.	e.g. scleroplasty, scleromalacia	Body parts	Eyes
uveo-	uveo-	Uvea, the middle layer of the eye.		Body parts	Eyes
vitro-2	vitreo-2	Vitreous body of the eye.	e.g. vitreopapillary, vitreoretinopathy	Body parts	Eyes

Gametes

Prefixes for gametes (eggs, sperm).

Prefixes categorized as Gametes, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
asco-	asc-, asci-, asco-	Ascus sac produced by ascomycete fungi.		Body parts	Gametes
gameto-	gameto-	Gametes (eggs and sperm).		Body parts	Gametes
gamo-2	gamo-2	Gametes.	e.g. gamodeme, gamogenesis, gamophyte	Body parts	Gametes
gon-2	gon-2, gono-2	Seed, semen.	e.g. gonocyst, gonarcus	Body parts	Gametes
oo-	oo-, oö-	Egg.	example(s) from: oogenesis	Body parts	Gametes
ovo-	ov-, ovi-, ovo-, ovulo-	Egg. ovum.	example(s) from: ovogenesis	Body parts	Gametes
palyno-	palyno-	Pollen; palynology.		Body parts	Gametes
semin-	semin-	Semen, seed.		Body parts	Gametes
spermato-	sperma-, spermato-, spermo-	Sperm, semen.	example(s) from: spermatogenesis	Body parts	Gametes
sporo-	spor-, spori-, sporo-	Spores.		Body parts	Gametes

Integument

Prefixes for the integumentary system: skin, hair, scales, feathers, hooves, nails, etc.

Prefixes categorized as Integument, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
blepharo-	blephar-, blepharo-	Eyelids.	example(s) from: blepharoplasty	Body parts	Integument
cerato-	cerat-, cerato-, kerato-	Horned, horn-like.	example(s) from: Ceratoidceratoid	Body parts	Integument
chaeto-	chaeto-	Hair.		Body parts	Integument
cheli-	cheli-	Claws.		Body parts	Integument
chlamydo-	chlamydo-	Denoting an outer covering (cortex) such as a rigid cell wall, or a frilled neck.	e.g. chlamydia, chlamydospore, Chlamydosaurus, Chlamydoselachus	Body parts	Integument
cutane-	cutane-	Skin.	example(s) from: Subcutaneous tissuesubcutaneous	Body parts	Integument
dasy-1	dasy-1	Hairy.	e.g. dasypygal	Body parts	Integument
dermo-	derm-, derma-, dermat-, dermato-, dermo-	The skin.	example(s) from: dermatology, epidermis, hypodermic, xeroderma	Body parts	Integument
epidermo-	epidermo-	Epidermal. epidermis; also, broadly, skin.		Body parts	Integument
epithelio-	epithelio-	Epithelium, skin.		Body parts	Integument
hopl-2	hopl-2, hoplo-2	Hoof, hooves, hooved.		Body parts	Integument
lign-	lign-, ligno-	Made of wood, wooden.	e.g. lignivorous, lignification, lignicolous	Body parts	Integument
onych-	onych-, onycho-	Nails, claws.	example(s) from: onychophagy	Body parts	Integument
palpebro-	palpebr-, palpebro-	Eyelid.	example(s) from: palpebra	Body parts	Integument
pilo-	pilo-	Hair.		Body parts	Integument
pinni-2	pinni-2	Feathers.		Body parts	Integument
pogono-	pogono-	Beard.		Body parts	Integument
ptero-2	pter-2, ptero-2, ptery-2	Feather.	e.g. pterography, pterophyte	Body parts	Integument
ptilo-1	ptilo-1	Feather, down.		Body parts	Integument
tricho-1	trich-1, trich-1, trichi-1, trichia-1, tricho-1	Hair.	example(s) from: w:Trichocyst	Body parts	Integument
ungui-	ungui-, unguo-	Nail, claw.	example(s) from: unguiform, ungual	Body parts	Integument

Intestines

Prefixes for divisions of the intestines. Alt-Sort: orders from duodenum (2) to rectum (8).

Prefixes categorized as Intestines, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
caeco-	caeco-, ceco-	Cecum.		Body parts	Intestines
colo-	colo-, colono-	The colon.		Body parts	Intestines
duodeno-	duoden-, duodeno-	The duodenum.	example(s) from: duodenal atresia, duodenum	Body parts	Intestines
ile-	ile-, ileo-, ilio-	The ileum.	example(s) from: w:ileocecal valve	Body parts	Intestines
jejuno-	jejuno-	The jejunum.		Body parts	Intestines
procto-	proct-, procto-	Rectum.	example(s) from: proctology	Body parts	Intestines
recto-	rect-, recto-	The rectum.	e.g. rectoabdominal, rectosacral, rectophobia	Body parts	Intestines
sigmoido-	sigmoid-, sigmoido-	Sigmoid colon.	example(s) from: w:sigmoid colon	Body parts	Intestines

Joints

Prefixes for joints (the connections between bones).

Prefixes categorized as Joints, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
arthr-1	arthr-1, arthro-1	Joint.	e.g. arthritis, arthroplasty, arthropod	Body parts	Joints
articul-	articul-	Joint.	example(s) from : Articulation	Body parts	Joints

Membranes

Prefixes for membranes of the body.

Prefixes categorized as Membranes, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allanto-2	allant-2, allanto-2	Relating to allantois.		Body parts	Membranes
amnio-	amnio-	The amnion around a foetus.	example(s) from : amniocentesis	Body parts	Membranes
chorio-	chorio-	The chorion.		Body parts	Membranes
endothelio-	endothelio-	Combining form of endothelium.		Body parts	Membranes
leicitho-	leicitho-	Egg yolk.		Body parts	Membranes
membrano-	membrano-	Membrane.		Body parts	Membranes
meningo-	mening-, meningo-	The meninges.	example(s) from: meninges, meningitis	Body parts	Membranes
meso-06	mes-06, meso-06	(anatomy) Referring to the mesentery.	e.g. mesoappendix, mesoduodenum, mesogastrium	Body parts	Membranes
mucoso-	mucoso-	Mucosal. referring to a mucosa (i.e., a mucous membrane).		Body parts	Membranes
myringo-	myring-, myringo-	Eardrum.	example(s) from: myringotomy	Body parts	Membranes
omento-	omento-	Omentum.		Body parts	Membranes
pleuro-1	pleur-1, pleuro-1	The pleurae.	e.g. pleurogenic, pleuropericarditis	Body parts	Membranes
vitello-	vitello-	Egg yolk.		Body parts	Membranes

Muscles

Prefixes for muscles.

Prefixes categorized as Muscles, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
gluteo-	gluteo-	The gluteus, buttocks.		Body parts	Muscles
laparo-	lapar-, laparo-	The abdominal wall; operations through it.	example(s) from: laparotomy	Body parts	Muscles
musculo-	muscul-, musculo-	Muscle.	example(s) from: w:musculoskeletal system	Body parts	Muscles
myo-	my-2, myo-	Muscle.	example(s) from: myoblast	Body parts	Muscles
phreno-2	phren-2, phreni-2, phrenic-2, phrenico-2, phreno-2	Diaphragm.	e.g. phrenocostal, phrenoplegia, phrenospasm	Body parts	Muscles
sphinctero-	sphinctero-	Sphincter.		Body parts	Muscles

Nerves

Prefixes for nerves.

Prefixes categorized as Nerves, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
axo-	ax-, axio-, axo-	Axis or axon.		Body parts	Nerves
ganglio-	ganglio-	Ganglion.		Body parts	Nerves
glio-	gli-, glio-	Glia.		Body parts	Nerves
nervo-	nerv-, nervo-	Nerve.	example(s) from: nerve, w:nervous system	Body parts	Nerves
radiculo-	radic-, radiculo-	The root of a nerve.	example(s) from: radiculopathy	Body parts	Nerves
synapto-1	synapto-1	Synapse.		Body parts	Nerves
vago-	vago-	Pertaining to the vagus nerve.		Body parts	Nerves

Organ systems

Prefixes for organ systems, e.g. gastrointestinal system.

Prefixes categorized as Organ systems, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
immuno-	immuno-	Immune system.		Body parts	Organ systems
neuro-1	neur-1, neuri-1, neuro-1	Nerves, nervous tissue, or the nervous system.	e.g. neuropathy, neurospinal, neurodynamics	Body parts	Organ systems
polio-2	poli-2, polio-2	Grey matter of the nervous system.	example(s) from: poliomyelitis	Body parts	Organ systems
sympatho-	sympatho-	Sympathetic nervous system.		Body parts	Organ systems
urino-	ur-, urin-, urino-, uro-1	Pertaining to urine and the urinary system.	example(s) from: antidiuretic, diuresis, diuretic, dysuria, enuresis, polyurea, polyuria, uraemia/uremia, uremic, ureter, urethra, urology	Body parts	Organ systems
vestibulo-	vestibulo-	The ear, balance, vestibular system.		Body parts	Organ systems

Organs

Prefixes for organs, interpeted broadly (includes glands).

Prefixes categorized as Organs, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
adeno-	aden-, adeno-	Gland, or pertaining to the adenoid.	example(s) from : adenocarcinoma, adenology, adenotome, adenotyphus	Body parts	Organs
adreno-	adren-, adrenal-, adreno-	Relating to the adrenal gland.	example(s) from : adrenal artery	Body parts	Organs
aedoe-	aedoe-	Genitalia.		Body parts	Organs
aur-	aur-, auro-	Ear.	example(s) from : Aural	Body parts	Organs
balano-	balan-, balano-	The glans (penis or clitoris).	example(s) from: balanitis	Body parts	Organs
branchio-	branchio-	Gills.		Body parts	Organs
cardi-	cardi-, cardio-	Heart.	example(s) from: cardiology	Body parts	Organs
cholecysto-	cholecyst-, cholecysto-	Relating to the gall bladder.	example(s) from: cholecystectomy	Body parts	Organs
colp-	colp-, colpo-	Vagina.	example(s) from: colposcopy	Body parts	Organs
cordi-	cord-, cordi-	Heart. .	example(s) from: commotio cordis,	Body parts	Organs
cysto-	cyst-, cysti-, cysto-	The bladder.	example(s) from: cystotomy	Body parts	Organs
entero-	enter-2, entero-	Intestines.	e.g. enterally, enterobacterial, enterogenesis	Body parts	Organs
esophago-	esophag-, esophago-, oesophag-, oesophago-	Esophagus.	e.g. esophagogastroduodenoscopy, esophagobronchial	Body parts	Organs
gastro-1	gastr-1, gastro-1	Stomach, gastric.	example(s) from: gastroenterology, gastropod	Body parts	Organs
genito-	genito-	Genitals.		Body parts	Organs
glosso-1	gloss-1, glosso-2, glott-2, glotto-2	The tongue.	e.g. glossopharyngeal, glossodynia	Body parts	Organs
gonado-	gonado-	The gonads.		Body parts	Organs
hepato-	hepat-, hepatic, hepatico-, hepato-	The liver.	example(s) from: hepatology, hepatitis	Body parts	Organs
hystero-	hyster-, hystero-	The uterus.	example(s) from: hysterectomy, hysteria	Body parts	Organs
intestino-	intestino-	Intestines.		Body parts	Organs
laryngo-	laryng-, laryngo-	The larynx.	e.g. laryngitis, laryngectomy	Body parts	Organs
lieno-	lien-, lieno-	The spleen.		Body parts	Organs
linguo-1	ling-1, lingua-1, linguo-1	Tongue.	e.g. linguobuccal, linguodistal	Body parts	Organs
luteo-	luteo-	Corpus luteum.		Body parts	Organs
metro-2	metr-2, metro-2	The uterus.	example(s) from: metrorrhagia	Body parts	Organs
naso-	nas-, naso-	The nose.	example(s) from: nasal	Body parts	Organs
nephro-	nephr-, nephro-	The kidneys.	example(s) from: nephrology	Body parts	Organs
oculo-	ocul-, oculo-	The eyes.	example(s) from: w:Oculist	Body parts	Organs
oophor-	oophor-, oophoro-	Ovary. The ovaries.	example(s) from: oophorectomy	Body parts	Organs
opthalmo-	ophthalmo-, opthalm-	Of or relating to eyes.	example(s) from: ophthalmology	Body parts	Organs
orchi-	orch-, orchi-, orchid-, orchido-, orchio-, orcho-	Testicles.	example(s) from: orchiectomy, orchidectomy	Body parts	Organs
organo-1	organo-1	Organs.		Body parts	Organs
oto-	ot-, oto-	Ear.	example(s) from: otology	Body parts	Organs
ovario-	ovari-, ovario-	Ovaries.	example(s) from: ovariectomy	Body parts	Organs
pancreato-	pancreat-, pancreatico-, pancreato-	Pancreas.		Body parts	Organs
peno-	peno-	Penis.		Body parts	Organs
peo-	peo-	Penis.	example(s) from: w:Peotomy	Body parts	Organs
phallo-	phall-, phallo-	Penis.	example(s) from: w:Aphallia	Body parts	Organs
phyllo-	phyllo-	Leaves.	example(s) from: w:phyllodes tumour, phyllotaxis	Body parts	Organs
placento-	placento-	Placenta.		Body parts	Organs
pneumo-1	pne-1, pneum-1, pneumo-1, pneumon-1, pneumono-1	Lungs.	example(s) from: apnea, pneumatology, pneumonocyte, pneumonia	Body parts	Organs
pulmo-	pulmo-, pulmon-, pulmono-	Lungs.	example(s) from: pulmonary	Body parts	Organs
reno-	ren-, reni-, reno-	The kidneys.		Body parts	Organs
rhino-	rhin-, rhino-	The nose.	example(s) from: rhinoceros, rhinoplasty	Body parts	Organs
rhizo-	rhiz-, rhizo-	Roots.		Body parts	Organs
salpingo-	salping-, salpingo-	Fallopian tubes.	example(s) from: salpingectomy, w:salpingopharyngeus muscle	Body parts	Organs
splanchno-	splanchn-, splanchni-, splanchno-	The viscera.	example(s) from: splanchnology	Body parts	Organs
spleno-	splen-, spleno-	Spleen.	example(s) from: splenectomy	Body parts	Organs
staphylo-2	staphylo-2	The uvula.		Body parts	Organs
testiculo-	testiculo-	Testicle.		Body parts	Organs
testo-	testo-	The testes.		Body parts	Organs
thymo-	thymo-	The thymus.		Body parts	Organs
thyro-	thyr-, thyreo-, thyro-	Thyroid.	e.g. thyroblast, thyrotomy, thyropharyngeal	Body parts	Organs
tonsillo-	tonsillo-	Tonsil.		Body parts	Organs
ulvu-	ulvu-	Uvula.		Body parts	Organs
utero-	uter-, utero-	Uterus.	e.g. uteroabdominal, uteralgia	Body parts	Organs
uvul-	uvul-, uvulo-	Uvula.		Body parts	Organs
vagino-	vagin-, vagino-	Pertaining to the vagina.	example(s) from: w:vaginal epithelium	Body parts	Organs
vesico-	vesic-, vesico-	Bladder.	example(s) from: w:vesical arteries	Body parts	Organs
viscero-	viscer-, viscero-	The viscera, organs.	example(s) from: viscera	Body parts	Organs

Orifices

Prefixes for orifices.

Prefixes categorized as Orifices, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
ano-	ano-	Pertaining to the anus.		Body parts	Orifices
mammillo-	mammill-, mammillo-	Nipple.	example(s) from: mammillaplasty, mammillitis	Body parts	Orifices
mast-1	mast-1, masto-1	Breasts, nipples, udders, teats.	example(s) from: mastectomy	Body parts	Orifices
meato-	meato-	Meatus (opening).		Body parts	Orifices
oro-1	oro-1	The mouth.	example(s) from: oral	Body parts	Orifices
papillo-	papill-, papillo-	Papilla, nipple.	example(s) from: papillitis	Body parts	Orifices
pyloro-	pylor-, pyloro-	Pylorus. Gate.	example(s) from: w:pyloric sphincter	Body parts	Orifices
stomato-	stom-, stomat-, stomato-	Mouth; opening.	example(s) from: stomatogastric, w:stomatognathic system	Body parts	Orifices
thel-	thel-	Nipple, teat.	example(s) from: w:Theleplasty, thelarche	Body parts	Orifices
urethr-	urethr-, urethro-	Urethra.		Body parts	Orifices

Teeth

Prefixes for teeth and their connections to the mouth.

Prefixes categorized as Teeth, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
amelo-	amelo-	Involving tooth enamel.		Body parts	Teeth
apico-4	apic-4, apici-4, apico-4	Related to the root of a tooth.	e.g. apicocoronal, apicoectomy	Body parts	Teeth
dento-	dent-, denti-, dento-	Tooth or teeth.	example(s) from: dentifrice, dentist, dentition, dental	Body parts	Teeth
gingivo-	gingiv-, gingivo-	The gums.	example(s) from: gingivitis	Body parts	Teeth
mylo-	mylo-	Of or pertaining to the molars.	example(s) from: w:mylohyoid nerve	Body parts	Teeth
odonto-	odont-, odonto-	Teeth.	example(s) from: orthodontist	Body parts	Teeth

Tubes and ducts

Prefixes for tubes and ducts of bodies, including blood vessels.

Prefixes categorized as Tubes and ducts, Body parts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
angio-	angi-, angio-	Blood vessels, lymph vessels.	example(s) from : angiogram, angioplasty	Body parts	Tubes and ducts
aorto-	aort-, aortico-, aorto-	The aorta.		Body parts	Tubes and ducts
appendico-	append-, appendic-, appendico-	Appendix.		Body parts	Tubes and ducts
arteri-	arteri-, arterio-	Artery.	example(s) from : arteriole, artery	Body parts	Tubes and ducts
arteriolo-	arteriol-, arteriolo-	Arteriole, small artery.		Body parts	Tubes and ducts
broncho-	bronch-, bronchi-, bronchio-, broncho-	Bronchus, trachea, airways to the lungs.	example(s) from: bronchitis, bronchiolitis obliterans	Body parts	Tubes and ducts
canaliculo-	canaliculo-	Canaliculus (small passageway).		Body parts	Tubes and ducts
carotico-	carotico-	Of or relating to the carotid artery.		Body parts	Tubes and ducts
cholangio-	cholangio-	Bile duct.		Body parts	Tubes and ducts
choledocho-	choledoch-, choledocho-	Common bile duct.		Body parts	Tubes and ducts
ducto-	ducto-	Duct (any exocrine glandular duct); most often the mammary duct, bile duct, or tear duct.		Body parts	Tubes and ducts
epididymo-	epididymo-	Epididymis.		Body parts	Tubes and ducts
glomerulo-	glomerulo-	Glomerulus.		Body parts	Tubes and ducts
haemangio-	haemangio-, hemangi-, hemangio-	Blood vessels.	example(s) from: hemangioma	Body parts	Tubes and ducts
jugulo-	jugulo-	Jugular vein.		Body parts	Tubes and ducts
pharyngo-	pharyng-, pharyngo-	Pharynx.	example(s) from: pharyngitis, pharyngoscopy	Body parts	Tubes and ducts
phlebo-	phleb-, phlebo-	Veins.	example(s) from: phlebography, phlebotomy	Body parts	Tubes and ducts
porto-	porto-	Portal vein.		Body parts	Tubes and ducts
pyelo-	pyel-, pyelo-	Renal pelvis.	example(s) from: pyelonephritis	Body parts	Tubes and ducts
tracheo-	trache-, trachea-, tracheo-	The trachea.	example(s) from: w:Tracheotomy	Body parts	Tubes and ducts
uretero-	uretero-, ureto-	Ureter.		Body parts	Tubes and ducts
varico-	varic-, varico-	Varicose vein.	example(s) from: varicose, w:esophageal varices	Body parts	Tubes and ducts
vas-	vas-	Vas deferens.		Body parts	Tubes and ducts
vasculo-	vasculo-	Vessels, blood vessels, lymphatic vessels.	e.g. vasculometabolic, vasculopathy	Body parts	Tubes and ducts
vaso-	vaso-	Vessel; blood vessels, blood pressure.	example(s) from: vasoconstriction	Body parts	Tubes and ducts
ven-	ven-, veni-, veno-	Vein.	example(s) from: venule, venospasm	Body parts	Tubes and ducts

Body processes

The dynamics of bodies: e.g. sleep, pregnancy, olfaction. Sensory information (e.g. colour, temperature) are categorized under "Colours, shapes and textures" and "Physical properties". Entries here must be applicable to species other than humans. Bodily processes that are human-specific go under "Human acitvities".

Bodily needs and functions

Basic physiological needs and functions, such as sleep and eating.

Prefixes categorized as Bodily needs and functions, Body processes.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
copr-	copr-, copro-	Excrement, dung.		Body processes	Bodily needs and functions
excito-	excito-	Excitation of a stimulus.	e.g. excitosecretory, excitoreflex, excitorepellent	Body processes	Bodily needs and functions
flato-	flato-	Flatulence.		Body processes	Bodily needs and functions
hypno-	hypn-, hypno-	Sleep. hypnosis.		Body processes	Bodily needs and functions
mnemo-	mnemo-	Memory.		Body processes	Bodily needs and functions
moto-2	moto-2	Motor; movement.		Body processes	Bodily needs and functions
narco-1	narc-1, narco-1	Stupor, sleep.	example(s) from: narcolepsy	Body processes	Bodily needs and functions
oneiro-	oneir-, oneiro-	Dreaming.		Body processes	Bodily needs and functions
phago-	phagist-, phago-	Eating, feeding, consuming.	e.g. phagocytosis, phagophobia, phagokinesis	Body processes	Bodily needs and functions
rept-	rept-	Crawl, creep (as a form of locomotion).		Body processes	Bodily needs and functions
respiro-	respiro-	Breathing.		Body processes	Bodily needs and functions
scato-	scato-	Excrement, feces.	e.g. scatophagy	Body processes	Bodily needs and functions
somno-	somn-, somn-, somni-, somno-	Sleep.		Body processes	Bodily needs and functions
sphygm-	sphygm-, sphygmo-	Pulse, pulsation (of blood delivered by the beating heart).		Body processes	Bodily needs and functions
spiro-2	spiro-2	Breathing.		Body processes	Bodily needs and functions
tono-1	ton-1, tono-1	Tonus: muscle tone, or tension in an organ.	e.g. tonography, myotonometer, hypotonia	Body processes	Bodily needs and functions
tropho-	tropho-	Nutrients, food.		Body processes	Bodily needs and functions
ventilo-	ventilo-	To aerate, oxygenate.		Body processes	Bodily needs and functions
vivi-	vivi-, vivo-	Living, alive.	e.g. vivisection	Body processes	Bodily needs and functions
vol-	vol-	Will, volition.		Body processes	Bodily needs and functions

Cellular processes

Cellular processes, such as mitosis and meiosis.

Prefixes categorized as Cellular processes, Body processes.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allo-02	allo-02	(immunology) Alloimmunity; transplantation of cells or tissues from one person to another.	e.g. alloresponse, alloreaction, alloresponsive	Body processes	Cellular processes
anti-7	ant-7, anti-7	(immunology) Reacting with immunoglobins found in the specified animal.	e.g. antirabbit, antihorse	Body processes	Cellular processes
meta-06	met-06, meta-06	(biochemistry) Relating to metabolism.		Body processes	Cellular processes
mito-2	mit-2, mito-2	Mitosis.		Body processes	Cellular processes
osmo-	osmo-	Osmosis.		Body processes	Cellular processes

Emotion

Affective states brought on by neurophysiological changes in the body.

Prefixes categorized as Emotion, Body processes.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
amor-	amor-	Love, liking.		Body processes	Emotion
anxio-	anxio-	Anxiety.		Body processes	Emotion
eroto-	eroto-	Sexual desire.	e.g. erotogenic, erotophobe, erotopathy	Body processes	Emotion
miso-	miso-	Hatred.		Body processes	Emotion
phil-	phil-, philo-	Liking, loving.	e.g. philathletic, phillumeny, philhippic	Body processes	Emotion
phob-	phob-, phobo-	Fear.		Body processes	Emotion
rage-	rage-	Anger, angering.		Body processes	Emotion

Pathological

Terms that involve pathologies (e.g. emeto for vomit, emesis).

Prefixes categorized as Pathological, Body processes.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
abio-	abio-	Without life.	e.g. abiotrophy, abiogenesis, abiosis	Body processes	Pathological
ankylo-3	anchyl-3, anchylo-3, ancyl-3, ancylo-3, ankyl-3, ankylo-3	Stiff in movement.	e.g. ankylotic, ankyloglossia	Body processes	Pathological
astheno-	asthen-, astheno-	Asthenia; weakness.		Body processes	Pathological
athero-	ather-, athero-	Arterial conditions that are characterised by gruel-like lesions.	example(s) from : atherosclerosis	Body processes	Pathological
burs-	burs-, burso-	bursa .	example(s) from: w:Synovial bursabursa, bursitis	Body processes	Pathological
carcin-	carcin-, carcino-	Cancer.	example(s) from: carcinoma	Body processes	Pathological
carcinomato-	carcinomato-	Carcinoma.		Body processes	Pathological
cario-	cario-	Dental caries.		Body processes	Pathological
coagulo-	coagulo-	Blood coagulation.		Body processes	Pathological
dys-03	dis-4, dys-03	unhealthy, harmful.	e.g. dysaemia, dyscognitive	Body processes	Pathological
dys-04	dis-4, dys-04	painful.	e.g. dysejaculation, dysuria	Body processes	Pathological
dys-10	dis-4, dys-10	(pathology) malady, disease.	e.g. dysendocrinism, dysexecutive, dysautonomia, dysbarism	Body processes	Pathological
edemato-	edem-, edemato-	Edema, swelling.		Body processes	Pathological
embolo-	embol-, embolo-	Embolism.		Body processes	Pathological
emeto-	emeto-	Vomit; emesis.		Body processes	Pathological
erythemato-	erythemato-	Erythema.		Body processes	Pathological
febri-	febri-	Fever.		Body processes	Pathological
fibromato-	fibromato-	Fibroma.		Body processes	Pathological
granulomato-	granulomato-	Granuloma.		Body processes	Pathological
halluc-	halluc-	To wander in the mind.	example(s) from: hallucinosis, hallucination	Body processes	Pathological
hernio-	hernio-	Hernia.		Body processes	Pathological
herpet-2	herpet-2, herpeto-2	Herpes.		Body processes	Pathological
ichthyo-2	ichthy-2, ichthyo-2	Scaly, dry skin.		Body processes	Pathological
ictero-	ictero-	Jaundice.		Body processes	Pathological
lepro-	lepro-	Leprosy.		Body processes	Pathological
malario-	malario-	Malaria.		Body processes	Pathological
nevo-	nevo-	Nevus skin lesion.		Body processes	Pathological
noso-	noso-	Disease.		Body processes	Pathological
odyno-	odyn-, odyno-	Pain.	example(s) from: stomatodynia	Body processes	Pathological
onco-	onco-	Tumour, cancer.	example(s) from: oncology	Body processes	Pathological
papulo-	papul-, papulo-	Papule.	example(s) from: papulation	Body processes	Pathological
parasito-	parasito-	Parasite.		Body processes	Pathological
patho-	path-, patho-	Disease, pathology.	example(s) from: w:Pathology	Body processes	Pathological
pero-	pero-	Congenital absence of a body part.		Body processes	Pathological
polypo-	polypo-	Polyp.		Body processes	Pathological
prurito-	prurito-	Itching.		Body processes	Pathological
psor-	psor-	Itching.	example(s) from: psoriasis	Body processes	Pathological
psychoto-	psychoto-	Psychosis.		Body processes	Pathological
punct-	punct-	Puncturing, pricking points.	e.g. punctiform, pyropuncture, acupuncture	Body processes	Pathological
pyo-	py-, pyo-	Pus.	example(s) from: pyometra	Body processes	Pathological
pyreto-	pyr-2, pyreto-, pyrexo-, pyro-2	Fever.	e.g. pyrotherapy, pyrogen	Body processes	Pathological
rheumato-	rheumato-	Watery flow.		Body processes	Pathological
sapro-	sapr-, sapro-	Putrid, rotten matter.	example(s) from: saprogenic	Body processes	Pathological
schizo-2	schiz-2 , schizo-2	Schizophrenia.	e.g. schizoaffective, schizosexual	Body processes	Pathological
spasmo-	spasmo-	Spasm.	example(s) from: w:Spasmodic dysphonia	Body processes	Pathological
syphilo-	syphilo-	Syphilis.		Body processes	Pathological
syringo-2	syringo-2	Fistula.		Body processes	Pathological
terato-	terato-	Monstrous, abnormal, deformed.	example(s) from: teratoma, teratogen	Body processes	Pathological
thrombo-	thromb-, thrombo-	Blood clotting.	example(s) from: thrombus, thrombocytopenia	Body processes	Pathological
toxi-	tox-, toxi-, toxic-, toxico-, toxo-	Toxic, poison.	example(s) from: w:Toxoplasmosis, w:Toxidrome	Body processes	Pathological
typhl-	typhl-, typhlo-	Blindness.		Body processes	Pathological
ulcero-	ulcero-	Ulcer.		Body processes	Pathological
ulo-	ulo-	Scar.		Body processes	Pathological
uric-	uric-	Urinary condition.		Body processes	Pathological
venero-	venero-	Sexual contact, venereal.		Body processes	Pathological
vesiculo-	vesiculo-	Blister.		Body processes	Pathological
viri-	viri-, viro-	Virus.		Body processes	Pathological
ze-	ze-	Boil.	example(s) from: eczema	Body processes	Pathological

Reproduction

Prefixes concerning reproduction in a physiological sense; human sexual behaviour (e.g. sado-) is under Human Activities.

Prefixes categorized as Reproduction, Body processes.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allo-15	allo-15	(ethology) Alloparenting: parenting behaviours between animals who are biologically parent and child.	e.g. allosuck, allocare, allofather	Body processes	Reproduction
amplexi-2	amplexi-2	Amplexus mating.		Body processes	Reproduction
blasto-	blast-, blasto-	Bud, budding, germination.	example(s) from: blastomere	Body processes	Reproduction
estro-	estr-1, estro-	Estrus (oestrus).		Body processes	Reproduction
gesto-	gestero-, gesto-	Pregnancy.		Body processes	Reproduction
gon-1	gon-1, gono-1	Sexual reproduction.	e.g. gonochoric	Body processes	Reproduction
gravid-	gravid-, gravido-	Pregnancy.		Body processes	Reproduction
meno-2	men-2, meno-2	Menses, menstruation.	example(s) from: menopause, menorrhagia	Body processes	Reproduction
obstetro-	obstetro-	Obstetrics; pregnancy and birth.		Body processes	Reproduction
parthen-	parthen-, partheno-	Parthenogenesis, without fertilization.		Body processes	Reproduction
toco-	toco-, toko-	Childbirth, reproduction.	example(s) from: tocolytic, dystocia	Body processes	Reproduction

Sensory

Prefixes concerning the neurophysiological element of sensory perception. Sensory information such as specific colours are under "Colours, shapes and textures" and "Physical properties".

Prefixes categorized as Sensory, Body processes.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acou-	acou-, acous-, acouso-, acoust-, acousto-	Sound.	example(s) from : acoumeter, acoustician, hyperacusis	Body processes	Sensory
aculo-	acule-, aculo-, acumin-, acuti-, acuto-	Sting, stinging; thorn, spike.		Body processes	Sensory
aesthesio-	aesthesi-, aesthesio-, esthesi-, esthesio-	Pertaining to sensation or perception.	example(s) from : esthesioneuroblastoma, esthesia	Body processes	Sensory
algo-	alg-, alge-, alges-, algesi-, algesio-, algi-, algio-, algo-	Pain. Nociception.	example(s) from : analgesic	Body processes	Sensory
aud-	aud-	Hearing, listening.		Body processes	Sensory
audio-	audio-	Pertaining to sound, audio.		Body processes	Sensory
cryo-2	cry-2, cryo-2	The perception of cold.	e.g. cryalgesia	Body processes	Sensory
dipso-	dipso-	Thirst.		Body processes	Sensory
dolor-	dolor-, doloro-	Pain.		Body processes	Sensory
echo-	echo-	Sonic, sound.		Body processes	Sensory
noci-	noci-	Pain, harm.	example(s) from: nociception	Body processes	Sensory
olfacto-	olfacto-	Smell.		Body processes	Sensory
optic-	optic-, optico-	Vision.	example(s) from: opticochemical	Body processes	Sensory
opto-	opto-	Optical.		Body processes	Sensory
osphresio-	osphresio-	Olfaction, to smell.		Body processes	Sensory
phono-	phon-, phono-	Sound.	example(s) from: phonograph, symphony	Body processes	Sensory
psychro-1	psychro-1	The perception of cold.	e.g. psychrophobia, psychrotolerance, psychrotherapy	Body processes	Sensory
sono-2	sono-2	The perception of sound.	e.g. sonophobia, sonosensitizer, sonotaxis	Body processes	Sensory
spec-	spec-	Look, see.		Body processes	Sensory
stereo-2	stereo-2	Relating to the binocular contribution to three-dimensional vision.	e.g. stereopsis, stereoblind	Body processes	Sensory
thym-	thym-	Emotions.	example(s) from: dysthymia	Body processes	Sensory
tono-3	ton-3, tono-3	Acoustic pitch or musical tone.	e.g. tonoscope, tonotopic, tonotopy	Body processes	Sensory
visuo-	visuo-	Vision, sight.		Body processes	Sensory

Celestial bodies and their rotations

Names of specific bodies in our solar system, celestial bodies generally, and periods of time (which are generally based on celestial movement).

General

Terms for generalized celestial bodies, such as stars.

Prefixes categorized as General, Celestial bodies and their rotations.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aster-1	aster-	Stars.		Celestial bodies and their rotations	General
astro-	astr-, astro-	Star. celestial body.	example(s) from: astrobiology, astrology, astronomy	Celestial bodies and their rotations	General
cosmo-	cosmo-	The universe, cosmos, world.		Celestial bodies and their rotations	General
planeto-	planeto-	Used to form astronomical terms related to planets.		Celestial bodies and their rotations	General
sidero-1	sidero-1	Of stars and constellations.		Celestial bodies and their rotations	General
stello-	stello-	Star. celestial body.		Celestial bodies and their rotations	General

Solar system

Members of our solar system. Alt-Sort: order from the Sun (0) to Kuiper Belt (9).

Prefixes categorized as Solar system, Celestial bodies and their rotations.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
areo-	areo-	The planet Mars.		Celestial bodies and their rotations	Solar system
crono-	crono-	The planet Saturn.		Celestial bodies and their rotations	Solar system
cythero-	cythero-	Relating to Venus.		Celestial bodies and their rotations	Solar system
geo-1	geo-1	Earth.	example(s) from: geography, geology, geometry	Celestial bodies and their rotations	Solar system
hadeo-	hadeo-	Pluto.		Celestial bodies and their rotations	Solar system
helio-	heli-, helio-	Sun.		Celestial bodies and their rotations	Solar system
hermeo-	hermeo-, hermo-	Mercury.		Celestial bodies and their rotations	Solar system
jovi-	jovi-	Relating to the planet Jupiter.		Celestial bodies and their rotations	Solar system
luni-	luni-	Moon.		Celestial bodies and their rotations	Solar system
mercuri-	mercuri-	Relating to the planet Mercury.		Celestial bodies and their rotations	Solar system
neptuni-	neptuni-	Relating to the planet Neptune.		Celestial bodies and their rotations	Solar system
poseido-	poseido-	Neptune.		Celestial bodies and their rotations	Solar system
selen-	selen-, seleno-1	The Moon.		Celestial bodies and their rotations	Solar system
telluro-1	telluro-1	Earth.		Celestial bodies and their rotations	Solar system
urano-1	urano-1	Uranus. Also used for the heavens more broadly.		Celestial bodies and their rotations	Solar system
zeno-	zeno-	Jupiter.		Celestial bodies and their rotations	Solar system

Time periods

Prefixes used to indicate a time period, generally based on the movement of the Earth relative to other celestial bodies (sun, moon, etc). Alt-Sort: approximate number of days in each time period.

Prefixes categorized as Time periods, Celestial bodies and their rotations.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
annu-	ann-, annu-	Annual, yearly.		Celestial bodies and their rotations	Time periods
hemero-	hemero-	Day.		Celestial bodies and their rotations	Time periods
meno-1	men-1, meno-1	Month, monthly.	e.g. menology	Celestial bodies and their rotations	Time periods
noct-	noct-	The night.		Celestial bodies and their rotations	Time periods
nyct-1	nyct-1, nycto-1	The night.		Celestial bodies and their rotations	Time periods
quarter-3	quarter-3	Three-month term.		Celestial bodies and their rotations	Time periods

Chemical substances

Names for chemical elements, compounds, and mixtures. Includes biochemical and pharmacological substances. Note: chemical prefixes for quantity (e.g. tri-) and composition (e.g. trans-) are categorized as Abstract. Does not include atomic-level or subatomic-level particles (e.g. electrons).

Acids

Prefixes for acids.

Prefixes categorized as Acids, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aci-	aci-	The acid of a tautomeric compound.		Chemical substances	Acids
anteiso-	anteiso-	(of an aliphatic compound, especially a fatty acid) Having a branch on the antepenultimate carbon atom of a chain.		Chemical substances	Acids
formo-	form-, formo-	Formic acid.		Chemical substances	Acids
glucurono-	glucurono-	Relating to glucuronic acid.		Chemical substances	Acids
gluta-	gluta-, glutar-	Glutamic acid.		Chemical substances	Acids
pristanoyl-	pristanoyl-	Pristanic acid.		Chemical substances	Acids
pyro-3	pyr-3, pyro-3	Orthoacid.	e.g. pyrocarbonate	Chemical substances	Acids
sulfo-2	sulf-2, sulfo-2, sulph-1, sulpho-1	Sulfonic acid.		Chemical substances	Acids

Biochemistry

Prefixes used to indicate biochemical substances or biochemical reactions.

Prefixes categorized as Biochemistry, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
amylo-	amyl-, amylo-	Starch.	example(s) from : amylase, amylophagia	Chemical substances	Biochemistry
arabo-	arab-, arabo-	Gum arabic.		Chemical substances	Biochemistry
co-18	co-18	(biochemistry) Referring to coenzymes.	e.g. coglucosidase, coprotease, codehydrogenase	Chemical substances	Biochemistry
eleo-1	eleo-1	Oil.		Chemical substances	Biochemistry
fibrino-	fibrino-	Fibrin.		Chemical substances	Biochemistry
fibro-	fibr-, fibro-	Fibre.	example(s) from: fibril, fibrin, w:fibrinous pericarditis, fibroblast, fibrosis	Chemical substances	Biochemistry
fructo-	fructo-	Fructose.		Chemical substances	Biochemistry
gelatino-	gelatino-	Gelatine.		Chemical substances	Biochemistry
glycero-	glycero-	Glycerol.		Chemical substances	Biochemistry
glyco-	glyc-, glyco-	Sugar.	example(s) from: glycolysis	Chemical substances	Biochemistry
hormono-	hormono-	Hormones.		Chemical substances	Biochemistry
malto-	malto-	Maltose.		Chemical substances	Biochemistry
manno-	manno-	Mannose.		Chemical substances	Biochemistry
oleo-1	oleo-1	Oil.		Chemical substances	Biochemistry
opsono-	opsono-	Opsonin.		Chemical substances	Biochemistry
proteo-	proteo-	Protein.		Chemical substances	Biochemistry
rhamno-	rhamno-	Rhamnose.		Chemical substances	Biochemistry
saccharo-	saccharo-	Sugar.		Chemical substances	Biochemistry
sucr-	sucr-, sucro-	Sugar.		Chemical substances	Biochemistry
ureo-	ure-, ureo-	Urea.		Chemical substances	Biochemistry
zym-	zym-, zymo-	Enzymes, fermentation.	example(s) from: enzyme, lysozyme	Chemical substances	Biochemistry

Compounds

Prefixes not otherwise categorized that are used to indicate common chemical compounds.

Prefixes categorized as Compounds, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
ammonio-	ammonio-	Ammonium.		Chemical substances	Compounds
aqua-	aqua-, aque-, aqui-	Water.		Chemical substances	Compounds
capno-1	capno-1	Carbon dioxide.		Chemical substances	Compounds
hydro-1	hydr-1, hydro-1	Water.	e.g. hydrate, hydroelectricity	Chemical substances	Compounds
naphtho-	naphtho-	Napthalene.		Chemical substances	Compounds
sulfonio-	sulfonio-, sulphonio-	Sulfur onium.		Chemical substances	Compounds
tartro-	tartro-	Tartar.		Chemical substances	Compounds

Derivatives

Prefixes used to indicate chemical derivatives.

Prefixes categorized as Derivatives, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
anhydro-	anhydro-	Having had water removed.		Chemical substances	Derivatives
anthra-	anthra-	Derivatives of anthracene.		Chemical substances	Derivatives
arabino-	arabino-	Derived from arabinose.		Chemical substances	Derivatives
baryto-1	baryto-1	Containing baryta.		Chemical substances	Derivatives
butyro-	butyro-	Butyric substance.		Chemical substances	Derivatives
cyan-2	cyan-2, cyano-2	Derived from cyanogen, cyanide.	e.g. cyanamide, cyanic acid	Chemical substances	Derivatives
deoxy-	deoxy-, desoxy-	Compounds that are formally derived from others by the replacement of a hydroxy group by a hydrogen atom.		Chemical substances	Derivatives
hydroxy-	hydroxy-	Hydroxyl.		Chemical substances	Derivatives
isoindol-	isoindol-	Isoindole derivative.		Chemical substances	Derivatives
methoxy-	methoxy-	The univalent radical CH3-O- derived from methanol.		Chemical substances	Derivatives
oxalo-	oxal-, oxalo-	Derived from, or related to oxalic acid. Containing the radical -CO-COOH derived from oxalic acid by removal of a hydroxyl.		Chemical substances	Derivatives
polydeoxy-	polydeoxy-	Various polymers of deoxynucleotides and their derivatives.		Chemical substances	Derivatives
polydeoxyribo-	polydeoxyribo-	Used to form various polymers of deoxyribonucleotides and their derivatives.		Chemical substances	Derivatives
polyribo-	polyribo-	Forming the names of polyribonucleotides and derived words.		Chemical substances	Derivatives
stannoso-	stannoso-	Denoting relation to, or connection with, certain stannous compounds.		Chemical substances	Derivatives
succin-	succin-	Relating to or derived from succinic acid.		Chemical substances	Derivatives

Elements

Prefixes for the elements of the periodic table. Alt-Sort: atomic number.

Prefixes categorized as Elements, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
alumino-	aluminio-, alumino-	Aluminum.	e.g. aluminography, aluminosilicate	Chemical substances	Elements
argento-	argento-	Silver.	e.g. argentic, argentiferous	Chemical substances	Elements
argo-	argo-	Argon.	e.g. argonium, argoxonium	Chemical substances	Elements
argyr-	argyr-, argyro-	Silver.	e.g. argyrose, argyric	Chemical substances	Elements
arseno-	arseno-	Arsenic.	e.g. arsenous, arsonium	Chemical substances	Elements
astat-	astat-	Astatine.	e.g. astatane, astatide	Chemical substances	Elements
auri-	aur-, auri-, auro-	Gold.	e.g. aurous, aurochloride	Chemical substances	Elements
azo-	az-, azo-, azoto-	Nitrogen.	e.g. azobenzene, azophilic	Chemical substances	Elements
baryto-2	baryto-2	Relating to barium.	e.g. barytocalcite	Chemical substances	Elements
beryl-	beryl-	Beryllium.	e.g. beryllide, beryllocene	Chemical substances	Elements
bismuto-	bismuto-	Used to name minerals in which an element of another mineral is replaced by bismuth.		Chemical substances	Elements
boro-	boro-	Boron.		Chemical substances	Elements
bromo-	brom-, bromo-	Bromine.		Chemical substances	Elements
cadmi-	cadmi-	Cadmium.	e.g. cadmic, cadmiferous	Chemical substances	Elements
calci-	calc-, calci-, calcio-, calco-	Calcium.		Chemical substances	Elements
carbo-	carb-, carbo-	Carbon.		Chemical substances	Elements
cer-	cer-	Cerium.	e.g. cerate, cerous	Chemical substances	Elements
chalco-	chalco-	Copper, brass. ore.		Chemical substances	Elements
chloro-2	chlor-2, chloro-2	Chlorine.	e.g. chloracetamide, chlorocalcite	Chemical substances	Elements
chromo-2	chromo-2	Chromium.		Chemical substances	Elements
cobalti-	cobalti-	Cobaltic.		Chemical substances	Elements
cobalto-	cobalto-	Cobaltous.		Chemical substances	Elements
cupro-	cupr-, cupro-	Copper.		Chemical substances	Elements
europ-	europ-	Europium.	e.g. europian, europoan	Chemical substances	Elements
ferro-	ferr-, ferri-, ferro-, ferroso-	Iron (element). ferrous.		Chemical substances	Elements
fluoro-	fluo-, fluor-, fluori-, fluoro-	Fluorine. Fluorescence.		Chemical substances	Elements
fos-	fos-	Phosphorous.		Chemical substances	Elements
gall-	gall-	Gallium.	e.g. gallane, gallylene	Chemical substances	Elements
german-	german-	Germanium.	e.g. germanol, germylene	Chemical substances	Elements
hafn-	hafn-	Hafnium.	e.g. hafnian, hafnocene dichloride	Chemical substances	Elements
halo-2	halo-2	Halogens.		Chemical substances	Elements
heli-2	heli-2	Helium.	e.g. disodium helide	Chemical substances	Elements
hydro-2	hydr-2, hydro-2	Hydrogen.	e.g. hydrocarbon, hydrazide	Chemical substances	Elements
indi-	indi-	Indium.	e.g. indic, indite	Chemical substances	Elements
io-	io-, iod-, iodo-	Iodine.		Chemical substances	Elements
iridico-	iridico-	Iridic.		Chemical substances	Elements
iridio-	iridio-	Iridium.		Chemical substances	Elements
kal-	kal-	Potassium.	example(s) from: hyperkalemia	Chemical substances	Elements
krypto-	krypto-	Krypton.	e.g. kryptonate	Chemical substances	Elements
lithio-	lithio-	Lithium.		Chemical substances	Elements
magnesio-	magnesio-	Pertaining to magnesium.		Chemical substances	Elements
mangan-	mangan-, mangano-1	Manganese.		Chemical substances	Elements
mangani-	mangani-	Manganic.		Chemical substances	Elements
mangano-2	mangano-2	Manganous.		Chemical substances	Elements
mercurico-1	mercurico-1	Mercury.		Chemical substances	Elements
mercurico-2	mercurico-2	Mercuric.		Chemical substances	Elements
molyb-	molyb-	Molybdenum.	e.g. molybdenite, molybdian	Chemical substances	Elements
natro-	natr-, natro-	Sodium.		Chemical substances	Elements
niob-	niob-	Niobium, Columbium.	e.g. niobic, niobous	Chemical substances	Elements
nitro-	nitr-, nitro-	Nitrogen.		Chemical substances	Elements
osmio-	osmio-	Osmium.		Chemical substances	Elements
oxo-1	ox-1, oxi-, oxo-1, oxy-2	Oxygen.	e.g. oxophilic, oxofluoride, oxygenated	Chemical substances	Elements
pallado-	palladio-, pallado-	Palladium.		Chemical substances	Elements
phospho-	phosph-, phospho-, phosphoro-	Phosphorous.		Chemical substances	Elements
platini-	platini-, platino-	Platinic, Platinum.		Chemical substances	Elements
platinoso-	platinoso-	Platinous.		Chemical substances	Elements
plumbo-	plumb-, plumbo-	Lead.		Chemical substances	Elements
pluto-2	pluto-2	Plutonium.		Chemical substances	Elements
pol-	pol-	Polonium.	e.g. polane, polonide	Chemical substances	Elements
potassio-	potassio-	Potassium.		Chemical substances	Elements
rhod-2	rhod-2	Rhodium.	e.g. rhodate, rhodocene	Chemical substances	Elements
rubid-	rubid-	Rubidium.	e.g. rubidic, rubidide	Chemical substances	Elements
ruthenio-	ruthenio-, rutheno-	Ruthenium.		Chemical substances	Elements
scandio-	scandio-, scando-	Scandium.	e.g. scandiobabingtonite, scandocene	Chemical substances	Elements
selenio-	selenio-, seleno-2	Selenium.		Chemical substances	Elements
sidero-3	sidero-3	Iron.		Chemical substances	Elements
silico-	silico-	Silicon.		Chemical substances	Elements
sodio-	sodio-	Compound of sodium.		Chemical substances	Elements
stanno-	stann-, stanno-	Tin.		Chemical substances	Elements
stibo-	stib-, stibio-, stibo-	Antimony.		Chemical substances	Elements
stronti-	stronti-	Strontium.	e.g. strontianite, strontiofluorite	Chemical substances	Elements
sulfo-1	sulf-1, sulfo-1, sulph-1, sulpho-1	Sulfur.		Chemical substances	Elements
tanta-	tanta-	Tantalum.	e.g. tantalate, tantalous	Chemical substances	Elements
technet-	technet-	Technetium.	e.g. technetic, pertechnetate	Chemical substances	Elements
tellur-	tellur-, telluri-, telluro-2	Tellurium.		Chemical substances	Elements
terb-	terb-	Terbium.	e.g. terbia, terbic	Chemical substances	Elements
thall-	thall-	Thallium.	e.g. thallane, thallous	Chemical substances	Elements
thio-	thi-, thio-	Sulfur. Containing sulfur.		Chemical substances	Elements
thori-	thori-	Thorium.	e.g. thorian, thoric	Chemical substances	Elements
titano-1	titano-1	Titanium.	e.g. titanomagnetite, titanosilicate	Chemical substances	Elements
tungsto-	tungsto-	Tungsten.		Chemical substances	Elements
uran-	uran-	Uranite.	e.g. uranite, uranitic	Chemical substances	Elements
uranoso-	uranoso-	Uranous.		Chemical substances	Elements
vanad-	vanad-	Vanadium.	e.g. vanadocene, vanadyl	Chemical substances	Elements
xen-2	xen-2	Xenon.	e.g. xenic acid, xenonium	Chemical substances	Elements
yttro-	yttro-	Yttrium.		Chemical substances	Elements
zinco-	zinco-	Pertaining to zinc.		Chemical substances	Elements
zirco-	zirco-	Zirconium.		Chemical substances	Elements

Foods

Prefixes not otherwise categorized that are used for food chemistry.

Prefixes categorized as Foods, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aleuro-	aleuro-	Wheat flour.	e.g. aleurometer, aleurone	Chemical substances	Foods
chondro-1	chondrio-1, chondro-1	Grains.	e.g. chondrometer	Chemical substances	Foods
oeno-	eno-, oeno-, œno-	Wine.	e.g. oenochemistry, oenometer, oenocyte	Chemical substances	Foods
sito-	sito-	Food, especially grain.	e.g. sitosterol, sitosterone; example(s) from: sitophobia	Chemical substances	Foods
succo-	succo-	Juice.	e.g. succose, succotash	Chemical substances	Foods
tyro-	tyro-	Cheese.	e.g. tyrosine, tyrotoxin, tyromancy	Chemical substances	Foods

Forms

Prefixes used to indicate composition in forming chemical names.

Prefixes categorized as Forms, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
alk-	alk-	Used to form classification names for classes of organic compounds which contain a carbon skeleton but no aromatic rings. See e.g. alkyl, alkane.		Chemical substances	Forms
apo-03	ap-03, aph-03, apo-03	(biochemistry) Lacking a metallic unit.	e.g. apoglobin, apomyoglobin, apometalloprotein	Chemical substances	Forms
ar-	ar-	organic compounds that contain a carbon skeleton and one or more aromatic rings.		Chemical substances	Forms
atrop-	atrop-, atropo-	Atropisomer.		Chemical substances	Forms
but-	but-	Denotes the presence of four carbon atoms in the parent chain when forming names of organic compounds.		Chemical substances	Forms
co-19	co-19	(organic chemistry) Referring to copolymers.	e.g. codimer, copolypeptide, comonomer	Chemical substances	Forms
cycl-3	cycl-23, cyclo-3	Cyclic compound.	example(s) from: cyclosis, cyclops, tricycle	Chemical substances	Forms
dehydro-	dehydro-	Used to form the names of compounds that have lost one or more hydrogen atoms, especially those that have lost even numbers of hydrogen atoms to form double bonds.		Chemical substances	Forms
diamido-	diamido-	Diamine.		Chemical substances	Forms
dichloro-	dichlor-, dichloro-	Two chlorine atoms.		Chemical substances	Forms
dihydro-	dihydro-	Two hydrogen atoms.		Chemical substances	Forms
dinitro-	dinitro-	Two nitro groups (-NO2).		Chemical substances	Forms
epi-07	epi-07	(chemistry) Denotes an epimeric form.	e.g. epicedrol, epicholesterol, epitestosterone	Chemical substances	Forms
eth-	eth-	Two carbon atoms.		Chemical substances	Forms
meso-13	mes-13, meso-13	(chemistry) Designating an achiral member of a group of diastereoisomers that has at least one chiral member.	e.g. mesotartaric acid, mesolytic	Chemical substances	Forms
peg-	peg-	Used to form names of PEGylated molecules.		Chemical substances	Forms
poly-2	poly-2	polymer.	e.g. polyacetal, polyethene, polyether	Chemical substances	Forms
prop-	prop-	Three carbon atoms.		Chemical substances	Forms
ribo-	ribo-	Set of 3 CHOH molecules, ribose.		Chemical substances	Forms
sulphureo-	sulphureo-	Used as a combining form to indicate sulphureous and some other property.		Chemical substances	Forms
trihydro-	trihydro-	Three hydrogen atoms.		Chemical substances	Forms

Functional groups

Prefixes for functional groups.

Prefixes categorized as Functional groups, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
alco-	alco-	Alcohol.		Chemical substances	Functional groups
aldo-	aldo-	Aldehyde.		Chemical substances	Functional groups
alkal-	alkal-, alkali-	Alkali, alkaline.		Chemical substances	Functional groups
amid-	amid-, amido-,	Containing an amino group -NH2),.		Chemical substances	Functional groups
amino-	amin-, amino-	Amines.		Chemical substances	Functional groups
benoz-	benz-, benzo-	Benzene, six-carbon aromatic ring.		Chemical substances	Functional groups
epoxy-	epoxy-	Based on an epoxide.		Chemical substances	Functional groups
imido-	imid-, imido-	Imide.		Chemical substances	Functional groups
keto-	keto-	Ketone.		Chemical substances	Functional groups
metho-	meth-, metho-	Methyl.		Chemical substances	Functional groups
pheno-2	phen-2, pheno-1	Benzene.		Chemical substances	Functional groups

Materials

Prefixes for materials such as glass, plastic, etc. Note that materials made out specific body parts of living organisms, such as wood or leaves, will be categorized under Body Parts.

Prefixes categorized as Materials, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acrylo-	acrylo-	Acrylic.	e.g. e.g acrylonitrile, acryloyl	Chemical substances	Materials
anthraco-	anthrac-, anthraco-	Coal, charcoal.		Chemical substances	Materials
cero-	cero-	Wax.	e.g. cerotype, ceroma, ceraceous	Chemical substances	Materials
crystallo-	crystallo-	Crystal.	e.g. crystallogeny, crystallometry	Chemical substances	Materials
igneo-1	igneo-1	Igneous.	e.g. ignimbrite, ignimbritic, tectono-igneous cycle	Chemical substances	Materials
mar-	mar-	Relating to the production of martensite grains in steel.		Chemical substances	Materials
meta-10	met-10, meta-10	(geology) Modified by metamorphosis; analogies and derivatives of metamorphism.		Chemical substances	Materials
ortho-16	orth-16, ortho-16	(geology) Igneous.	e.g. orthogneiss, paragneiss, orthocumulate	Chemical substances	Materials
petro-	petro-	Rocks. Petrol, fossil fuels.		Chemical substances	Materials
plasto-2	plasto-2	Plastic.		Chemical substances	Materials
sapo-	sapo-, sapon-	Soap.		Chemical substances	Materials
schisto-2	schist-2, schisto-2	Schist, shale.	e.g. schistous, schistaceous	Chemical substances	Materials
silici-	silici-	Silex; silica.		Chemical substances	Materials
vitreo-1	vitreo-1	Glass.	e.g. vitreography, vitrine	Chemical substances	Materials
xylo-	xyl-, xylo-	Wood, wooden.	e.g. xylophone, xylohexaose	Chemical substances	Materials

Pharmacological

Prefixes used to indicate pharmacological moieties, derivatives, etc.

Prefixes categorized as Pharmacological, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
arte-	arte-	Used to form names of artemisinin-related compounds used as antimalarial agents.		Chemical substances	Pharmacological
cef-	cef-	Used to form names of cefalosporanic acid derivative used as antibiotics.		Chemical substances	Pharmacological
cort-	cort-	Used to form names of corticosteroids except prednisolone derivatives.		Chemical substances	Pharmacological
dil-	dil-	Used to form names of vasodilators.		Chemical substances	Pharmacological
es-	es-	Used to form names of drugs with a chiral center in the S configuration.		Chemical substances	Pharmacological
estr-2	estr-2	Used to form names of estrogens.		Chemical substances	Pharmacological
gab-	gab-	Gabamimetic agent.		Chemical substances	Pharmacological
gest-	gest-	Steroid, progestrogen.		Chemical substances	Pharmacological
gly-	gly-	Antihyperglycemic.		Chemical substances	Pharmacological
guan-	guan-	Guanidine.		Chemical substances	Pharmacological
mito-3	mit-3, mito-3	Used to form names of nucleotoxic agents used as antineoplastics.		Chemical substances	Pharmacological
nab-	nab-	Cannabinoid receptor agonist.		Chemical substances	Pharmacological
nal-	nal-	Opiod receptor agonist.		Chemical substances	Pharmacological
narco-2	narc-2, narco-2	Narcotics.	e.g. narcotherapy, narcoterrorism	Chemical substances	Pharmacological
nifur-	nifur-	5-nitrofuran.		Chemical substances	Pharmacological
pred-	pred-	Prednisolone.		Chemical substances	Pharmacological
rifa-	rifa-	Used to form names of rifamycin derivatives used as antibiotics.		Chemical substances	Pharmacological
sal-	sal-	Salicylic acid.		Chemical substances	Pharmacological
salazo-	salazo-	Phenylazosalicylic acid.		Chemical substances	Pharmacological
scopol-	scopol-	Indicating elements obtained from Scopolia japonica.		Chemical substances	Pharmacological
sulfa-	sulfa-, sulpha-	Used to form names of sulfonamides used as antiinfectives.		Chemical substances	Pharmacological
trop-	trop-	Used to form names of atropine derivatives.		Chemical substances	Pharmacological
vin-	vin-	Vinca alkaloids.		Chemical substances	Pharmacological

Radicals

Prefixes for free radicals in organic chemistry. Unbound (non-free) radicals are subcategorized as Functional Groups.

Prefixes categorized as Radicals, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aceto-	acet-, aceto-	Methyl group bonded to a carboxyl group.		Chemical substances	Radicals
mercapto-	mercapto-	An organosulfur compound that contains a carbon-bonded sulfhydryl or sulphydryl.		Chemical substances	Radicals
peroxy-	peroxy-	Used to name compounds containing the divalent peroxy -O-O- radical.		Chemical substances	Radicals
pyrrolidino-	pyrrolidino-	Containing a pyrrolidine ring.		Chemical substances	Radicals
ureido-	ureido-	Ureylene. Containing the univalent radical NH2CONH–.		Chemical substances	Radicals

Substituents

Prefixes used to indicate a chemical substitution.

Prefixes categorized as Substituents, Chemical substances.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aza-	aza-	Used to form names of organic compounds where an atom is replaced by a nitrogen atom.		Chemical substances	Substituents
azido-	azido-	Having an azide group (N-=N+=N-)as a substituent. Based on an azo compound (-N=N-).		Chemical substances	Substituents
bario-	bario-	Used to form the names of minerals in which an element has been replaced by barium.		Chemical substances	Substituents
bora-	bora-	Describing any compound in which a carbon atom (or a >CH group) has been replaced by one of boron.		Chemical substances	Substituents
chloroformyl-	chloroformyl-	Molecule containing a chloroformyl group which consists of a formyl group (-CO-H, also called aldehyde), in which the hydrogen is substituted by a chlorine atom (-CO-Cl). Also called acyl chloride.		Chemical substances	Substituents
dilitha-	dilitha-	Having two lithium atoms replace hydrogen atoms in an organic compound.		Chemical substances	Substituents
dilithio-	dilithio-	Having two lithium atoms replace hydrogen atoms in an organic compound.		Chemical substances	Substituents
dimethylimidazol-	dimethylimidazol-	Dimethylimidazole, within a larger chemical formula.		Chemical substances	Substituents
litha-	litha-	Having a lithium atom replace hydrogen in an organic compound.		Chemical substances	Substituents
methyl-	methyl-	Used to form terms describing the attachment of a methyl group.		Chemical substances	Substituents
ortho-09	orth-09, ortho-09	(chemistry) Having an extra proportion of water.	e.g. orthophosphate, orthosilicate, orthoferrite	Chemical substances	Substituents
oxa-	oxa-	Used to name compounds in which a carbon atom (typically a methylene group) has been replaced by one of oxygen.		Chemical substances	Substituents
oxaza-	oxaza-	Used to name compounds in which two carbon atoms have been replaced by one of oxygen and one of nitrogen.		Chemical substances	Substituents
oxo-2	ox-2, oxo-2	Having a methylene group replaced by a carbonyl group.	example(s) from:	Chemical substances	Substituents
perfluoro-	perfluoro-	Used to describe any compound or group in which every hydrogen atom has been replaced by fluorine.		Chemical substances	Substituents
phospha-	phospha-	Indicating that phosphorus substitutes for another atom in the molecule name it prefixes.		Chemical substances	Substituents
thia-	thia-	Used to form the names of chemical compounds containing sulfur, especially where a sulfur atom replaces an oxygen atom in an analogous compound.		Chemical substances	Substituents

Colours, shapes, and textures

Prefixes used for specific colours, shapes, textures, and sounds. These are forms of sensory information that have a stronger psychocultural element to them than those in the category "Physical properties". For example, while there are wavelengths that correspond to certain colours, some colours (e.g. magenta) do not have associated wavelengths as they are created neuropsychologically. The sensory processes of colour vision, haptic information, etc is under Body Processes.

Colours

Prefixes categorized as Colours, Colours, shapes, and textures.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
albo-	alb-, alba-, albi-, albin-, albino-, albo-, albu-	White.	example(s) from : albino, tunica albica	Colours, shapes, and textures	Colours		Shades		1 - White
amethyst-	amethyst-	Lavender, purple.		Colours, shapes, and textures	Colours		Hues		9 - Purple
chloro-1	chlor-1, chloro-1	Green.	e.g. chlorosis, chlorophyll, chlorella	Colours, shapes, and textures	Colours		Hues		4 - Green
chrys-	chrys-, chryso-	Yellow.		Colours, shapes, and textures	Colours		Hues		3 - Yellow
cirrh-	cirrh-, cirrho-	Orange.		Colours, shapes, and textures	Colours		Hues		2 - Orange
cyan-1	cyan-1, cyano-1	Dark blue-green in color.	example(s) from: cyanopsia, cyanosis	Colours, shapes, and textures	Colours		Hues		5 - Teal
eosin-	eosin-, eosino-	Red.	example(s) from: w:eosinophil granulocyte	Colours, shapes, and textures	Colours		Hues		1 - Red
erythro-	erythr-, erythro-	Red.	example(s) from: erythrocyte	Colours, shapes, and textures	Colours		Hues		1 - Red
flavo-	flavo-	Yellow.		Colours, shapes, and textures	Colours		Hues		3 - Yellow
glauco-	glauc-, glauco-	Grey, silver.	example(s) from: glaucoma	Colours, shapes, and textures	Colours		Shades		2 - Grey
hyalo-	hyalo-	Transparent.		Colours, shapes, and textures	Colours		Shades		0 - Transparent
igneo-2	igneo-2	The colour of fire, red.	e.g. w:Igneoplaca, w:Madascincus igneocaudatus, w:Igneocumulus	Colours, shapes, and textures	Colours		Hues		1 - Red
jaundo-	jaundo-	Yellow, jaundiced.		Colours, shapes, and textures	Colours		Hues		3 - Yellow
leuko-	leuc-, leuco-, leuk-, leuko-	White. Colourless.	example(s) from: leukocyte	Colours, shapes, and textures	Colours		Hues		1 - White
lumino-	lumino-	Light, illumination.		Colours, shapes, and textures	Colours		Shades		1 - White
mela-	mela-	Black; dark.		Colours, shapes, and textures	Colours		Shades		4 - Black
melano-	melan-, melano-	Black.	example(s) from: melanin	Colours, shapes, and textures	Colours		Shades		4 - Black
negro-	negro-, nigro-	Black.		Colours, shapes, and textures	Colours		Shades		4 - Black
nyct-2	nyct-2, nycto-2	Darkness.		Colours, shapes, and textures	Colours		Shades		3 - Dark
phanero-	phanero-	Visible.		Colours, shapes, and textures	Colours		Shades		! - Visible
pheo-	phaeo-, pheo-	Grey or dark in colour.		Colours, shapes, and textures	Colours		Shades		3 - Dark
poikilo-2	poecilo-2, poikilo-2, pœcilo-2	Variegated.	e.g. poikiloblast, poikiloderma, poecilosclerid	Colours, shapes, and textures	Colours		Hues
polio-1	poli-1, polio-1	Grey.	example(s) from: poliomyelitis	Colours, shapes, and textures	Colours		Shades		2 - Grey
porphyr-	porphyr-	Purple.	example(s) from: porphyroblast	Colours, shapes, and textures	Colours		Hues		9 - Purple
praseo-	praseo-	Green.		Colours, shapes, and textures	Colours		Hues		4 - Green
purpureo-	purpureo-	Purple.		Colours, shapes, and textures	Colours		Hues		9 - Purple
pyrrh-	pyrrh-	Red.		Colours, shapes, and textures	Colours		Hues		1 - Red
rhodo-	rhod-1, rhodo-	Rosy, reddish pink.	example(s) from: rhodophyte	Colours, shapes, and textures	Colours		Hues		0 - Pink
roseo-	roseo-	Rosy, reddish pink.		Colours, shapes, and textures	Colours		Hues		0 - Pink
rufo-	rufo-	Reddish.		Colours, shapes, and textures	Colours		Hues		1 - Red
scoto-	scot-, scoto-, skoto-	Darkness.	example(s) from: w:scotopic vision	Colours, shapes, and textures	Colours		Shades		3 - Dark
skia-'	skia-	Lack of colour.		Colours, shapes, and textures	Colours		Shades		! - Colourless
tephro-2	tephro-2	Gray or ashen.		Colours, shapes, and textures	Colours		Shades		2 - Grey
umbra-	umbra-	Shadow.		Colours, shapes, and textures	Colours		Shades		3 - Dark
xantho-	xanth-, xantho-	Yellow.	example(s) from: xanthopathy	Colours, shapes, and textures	Colours		Hues		3 - Yellow

Shapes

Prefixes used to describe various geometric shapes. Primarily used for naming organisms.

• Boxy: Prefixes for shapes that are boxy - like a cube, square, prism, rectangle, rhombus, etc.
• Conical: Prefixes for shapes that are roughly conical, or bowl-shaped.
• Cross: Prefixes for shapes like a cross or X; linear with a cross-beam.
• Curly: Prefixes for shapes that are spirals, twisted, coiled, helical, etc.
• Filiform: Prefixes that are like a hair or string.
• Round: Prefixes for shapes that are like spheres, circles, disks, rings, etc.
• Spiky: Prefixes for shapes that star-like or otherwise spiky.
• Cylindrical: Prefixes for shapes that are cylindrical, tubular, rod-like, or phallic.
• Yonic: Prefixes for shapes that have an elliptic shape, but have tapering on the ends (e.g. fusiform), so are not properly Round.
• Branching: Prefixes for shapes that have a branching structure, like a feather or leaf.
• Bumpy: Prefixes for shapes that have rounded bumps rather than sharp spikes (see: Spiky).

Prefixes categorized as Shapes, Colours, shapes, and textures.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acanth-	acanth-, acantho-	With thorns, spikes.	example(s) from : acanthion, acanthocyte, acanthoma, acanthulus	Colours, shapes, and textures	Shapes				Spiky
acicul-	acicul-	Needle, needlelike. Needle-shaped.		Colours, shapes, and textures	Shapes				Cylindrical
acro-05	acr-05, acro-05, akro-05	Pointed in shape.	e.g. acrocephalic, Acronicta, acrocranial	Colours, shapes, and textures	Shapes				Conical
actino-1	actin-1, actino-1	Ray, ray-shaped.	e.g. actinolite, actinomycete	Colours, shapes, and textures	Shapes				Cylindrical
allanto-1	allant-1, allanto-1	Sausage-shaped. .		Colours, shapes, and textures	Shapes				Cylindrical
amphor-	amphor-	Shaped like an urn.		Colours, shapes, and textures	Shapes				Round
ampulla-	ampulla-	Bladder, flask.		Colours, shapes, and textures	Shapes				Round
annulo-	annulo-	Relating to an annulus (ring).		Colours, shapes, and textures	Shapes				Round
antiprismo-	antiprismo-	Eight atoms bound into a rectangular antiprism.		Colours, shapes, and textures	Shapes				Boxy
apico-1	apic-1, apici-1, apico-1	Having a shape that has a tip, point, or apex; apical, pointy.	e.g. apicoplast, w:Apicophilicity, w:Homophoberia apicosa	Colours, shapes, and textures	Shapes				Spiky
aster-2	aster-	Star-shaped.		Colours, shapes, and textures	Shapes				Spiky
capill-1	capill-1	Shaped like hair.	example(s) from: capillus	Colours, shapes, and textures	Shapes				Filiform
caudo-2	caudo-2	Tail-shaped.		Colours, shapes, and textures	Shapes				Cylindrical
choano-	choan-, choano-	Funnel.		Colours, shapes, and textures	Shapes				Conical
cirro-	cirro-	A tuft, curl, or tendril.		Colours, shapes, and textures	Shapes				Curly
clostr-	clostr-	Spindle, spindle-shaped.	example(s) from: Clostridium	Colours, shapes, and textures	Shapes				Yonic
conico-	conico-	Somewhat resembling a cone.		Colours, shapes, and textures	Shapes				Conical
cono-	cono-	Of or pertaining to a cone.		Colours, shapes, and textures	Shapes				Conical
cornu-	cornu-	Horn-shaped, horn-like.	example(s) from: greater cornu	Colours, shapes, and textures	Shapes				Curly
coron-	coron-, corona-, corono-	Crown, crown-shaped.	example(s) from: coronary heart disease	Colours, shapes, and textures	Shapes				Spiky
cross-01	cross-01	Shaped like a cross or X; crossing lines.	e.g. crossbody, crossbuck, cross-stitch	Colours, shapes, and textures	Shapes				Cross
cteno-	cteno-	Comb, comb-shaped.		Colours, shapes, and textures	Shapes				Branching
cycl-1	cycl-1, cyclo-1	Circle.	example(s) from: cyclosis, cyclops, tricycle	Colours, shapes, and textures	Shapes				Round
disco-	disco-, disko-	Disc-shaped.		Colours, shapes, and textures	Shapes				Round
echino-	echino-	Spiny.		Colours, shapes, and textures	Shapes				Spiky
fil-	fil-	Fine, hair-like.	example(s) from: filament, filum terminale	Colours, shapes, and textures	Shapes				Filiform
gyro-	gyro-	Circle, circular, spinning, rotating.	example(s) from: gyrocopter, gyroscope, gyrosphere	Colours, shapes, and textures	Shapes				Round
helico-	helico-	Helix, spiral.		Colours, shapes, and textures	Shapes				Curly
hexahedro-	hexahedro-	Eight atoms bound into a hexahedron (cube).		Colours, shapes, and textures	Shapes				Boxy
infundibulo-	infundibulo-	Infundibulum. Funnel-shaped cavity or organ.		Colours, shapes, and textures	Shapes				Conical
kymo-	kymo-	Wave, waveform.		Colours, shapes, and textures	Shapes				Curly
lepido-	lepido-	Scaly, particularly scaly skin.	e.g. lepidote, Lepidoptera	Colours, shapes, and textures	Shapes				Bumpy
lopho-1	lopho-1	Crest, ridge.	e.g. lophodont deeth	Colours, shapes, and textures	Shapes				Bumpy
lopho-2	lopho-2	Tuft. Multiple flagella.	e.g. lophotrichous, lophophore	Colours, shapes, and textures	Shapes				Branching
mito-1	mit-1, mito-1	Thread, string.		Colours, shapes, and textures	Shapes				Filiform
nemat-	nemat-, nemato-	Filiform structure, thread.		Colours, shapes, and textures	Shapes				Filiform
nido-	nido-	Nest.		Colours, shapes, and textures	Shapes				Conical
nodo-	nodo-	Lumpy, nodular.		Colours, shapes, and textures	Shapes				Bumpy
ortho-06	orth-06, ortho-06	Straight in form.	e.g. orthoconic, orthodentin, orthognathous	Colours, shapes, and textures	Shapes				Linear
ortho-07	orth-07, ortho-07	(crystallography) Orthohrombic crystal structure.	e.g. orthochrysotile, orthopyroxene, orthohexagonal	Colours, shapes, and textures	Shapes				Boxy
ortho-12	orth-12, ortho-12	Parallel lines or columns.	e.g. orthostyle, ortholinear, orthographic	Colours, shapes, and textures	Shapes				Branching
pentaprismo-	pentaprismo-	Compounds having ten atoms bound into a pentagonal prism.		Colours, shapes, and textures	Shapes				Boxy
phaco-	phaco-, phako-	Lens.	example(s) from: phacolysis, phacometer, phacoscotoma	Colours, shapes, and textures	Shapes				Yonic
piri-	piri-	Pear-shaped.	example(s) from: w:Piriformis muscle	Colours, shapes, and textures	Shapes				Round
placo-	placo-	Plate-shaped. Typically used for scales of animal skins.	e.g. Placodermi, Placodontia	Colours, shapes, and textures	Shapes				Bumpy
ptero-3	pter-3, ptero-3, ptery-3	Wing-like.	example(s) from: w:lateral pterygoid plate3	Colours, shapes, and textures	Shapes				Branching
pterygo-2	pteryg-2, pterygo-2	Wing-shaped.		Colours, shapes, and textures	Shapes				Branching
ptilo-2	ptilo-2	Feather-shaped.	e.g. ptilolite	Colours, shapes, and textures	Shapes				Branching
rhabdo-	rhabd-, rhabdo-	Rod, rod-like.	example(s) from: rhabdomyolysis	Colours, shapes, and textures	Shapes				Cylindrical
rhombi-	rhombi-	Having four-sided faces.		Colours, shapes, and textures	Shapes				Boxy
scapho-	scapho-	Shaped like a boat.		Colours, shapes, and textures	Shapes				Yonic
siphono-	siphono-	Siphon.		Colours, shapes, and textures	Shapes				Curly
soleno-	soleno-	Having a tube, a duct or a pipe; Having a cavity by which something can pass, like venom.		Colours, shapes, and textures	Shapes				Cylindrical
spheno-	sphen-, spheno-	Wedge-shaped.		Colours, shapes, and textures	Shapes				Yonic
sphero-	spher-, spherico-, sphero-	Spherical.		Colours, shapes, and textures	Shapes				Round
spiro-1	spiro-1	Spiral, coiled.		Colours, shapes, and textures	Shapes				Curly
stauro-	stauro-	Cross; cross-shaped.		Colours, shapes, and textures	Shapes				Cross
strepto-	strepto-	Twisted.		Colours, shapes, and textures	Shapes				Curly
syringo-1	syringo-1	Tube, tuboid structure.		Colours, shapes, and textures	Shapes				Cylindrical
thec-	thec-	Case, sheath.	example(s) from: intrathecal	Colours, shapes, and textures	Shapes				Cylindrical
trocho-	trocho-	Wheel.		Colours, shapes, and textures	Shapes				Round
tubo-	tubo-	Tube.		Colours, shapes, and textures	Shapes				Cylindrical
tubul-	tubul-, tubulo-	Tubules, microtubules.		Colours, shapes, and textures	Shapes				Cylindrical
valv-	valv-, valvo-, valvul-, valvulo-	Valve.		Colours, shapes, and textures	Shapes				Cylindrical
xipho-	xiph-, xipho-	In the shape of a sword.	example(s) from: xiphisternum, xiphoid, xiphoidalgia	Colours, shapes, and textures	Shapes				Cross
xyr-	xyr-, xyro-	Razor, razor-like.		Colours, shapes, and textures	Shapes				Cylindrical

Sounds

Prefixes for specific sounds (e.g. a thud), rather than the concept of sound, acoustics, or the auditory sensory system.

Prefixes categorized as Sounds, Colours, shapes, and textures.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
a-15	a-15	Empty syllable added to songs, poetry, verse and other speech.	e.g. A-tisket a-tasket	Colours, shapes, and textures	Sounds
ker-	ka-, ker-	Onomatopoeic term for a thud.		Colours, shapes, and textures	Sounds				Onomatopoeia

Textures

Prefixes for textures.

Prefixes categorized as Textures, Colours, shapes, and textures.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acu-1	acu-1	Sharp.		Colours, shapes, and textures	Textures				Sharp
dura-	dura-	Hard.	example(s) from: dura mater	Colours, shapes, and textures	Textures				4 - Hard
leio-	lei-, leio-	Smooth.	example(s) from: leiomyoma	Colours, shapes, and textures	Textures				1 - Smooth
liss-	liss-, lissos-	Smooth.	example(s) from: lissencephaly	Colours, shapes, and textures	Textures				1 - Smooth
malaco-	malaco-	Soft.		Colours, shapes, and textures	Textures				0 - Soft
oxy-1	oxy-1	Sharp, keen, pointed, acute.	e.g. oxygon, oxymoron	Colours, shapes, and textures	Textures				Sharp
psilo-	psilo-	Bare, smooth.		Colours, shapes, and textures	Textures				1 - Smooth
sclero-1	scirrho-, scler-1, sclero-1	Hard.	e.g. scleroatrophy, sclerous, sclerosponge	Colours, shapes, and textures	Textures				4 - Hard
squamo-	squamo-, squamos-, squamoso-	Made of scales, scaly.	example(s) from: w:squamous cell	Colours, shapes, and textures	Textures				Scaly
stereo-3	stereo-3	Solid, hard.	e.g. stereotype plate	Colours, shapes, and textures	Textures				4 - Hard

Human activities

Prefixes for things that individual humans /do/ (i.e. verbs), perhaps in groups. Entries must be considered human-specific. Bodily activities that are not human-specific will be found under Body Processes (e.g. eating).

Healing

Prefixes for human activities that are primarily associated with healing.

Prefixes categorized as Healing, Human activities.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
balneo-	balneo-	Bath, bathing.	e.g. balneotherapeutics	Human activities	Healing
masso-	masso-	Massage.		Human activities	Healing
palliato-	palliato-	To relieve, soothe. Palliative.		Human activities	Healing
resuscito-	resuscito-	Resuscitation.		Human activities	Healing
therap-	therap-	Therapeutic, healing.	example(s) from: hydrotherapy, therapeutic	Human activities	Healing

Language

Prefixes for the process of creating language. Does not include linguistic units like phonemes.

Prefixes categorized as Language, Human activities.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
apico-3	apic-3, apici-3, apico-3	Articulated with the tip of the tongue.	e.g. apicoalveolar, apicodental, apicopalatal	Human activities	Language
arthr-2	arthr-2, arthro-2	Articulation (speech).	e.g. dysarthrophonia	Human activities	Language
chiro-2	cheir-2, cheiro-2, chir-2, chiro-2	Sign language.	e.g. chireme, chirogram, chirology	Human activities	Language
glosso-2	gloss-2, glosso-1, glott-1, glotto-1	Speech.	e.g. glossolalia, glossophilia	Human activities	Language
grapho-	grapho-	Writing, drawing.		Human activities	Language
lalo-	lalo-	Speech, speaking.		Human activities	Language
pict-	pict-	Paint, draw, visualize, show.	e.g. pictograph, pictorial	Human activities	Language

Other human activities

Prefixes for human activities that did not fit into any of the other subcategories; themes include feasting and warring.

Prefixes categorized as Other human activities, Human activities.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acro-11	acr-11, acro-11, akro-11	Acrobatics.	e.g. acrobalance, Acroyoga	Human activities	Other human activities
agri-	agr-, agri-, agrio-, agro-	Agriculture.	e.g. acroecology, agrochemical, agrophotovoltaics	Human activities	Other human activities
bellig-	bellig-	War, fighting.		Human activities	Other human activities
deipno-	deipno-	Dinner, banquet.		Human activities	Other human activities
ergo-	ergo-	Work.		Human activities	Other human activities
gastro-2	gastr-2, gastro-2	Cooking.	e.g. gastronomy, gastroporn	Human activities	Other human activities
gnos-	gnos-	To know, particularly in a religious sense.	e.g. gnostic	Human activities	Other human activities
heort-	heort-	Feast.		Human activities	Other human activities
klepto-	klepto-	Stealing.		Human activities	Other human activities
ochlo-	ochlo-	Crowd of people, crowding, to form a crowd of people.		Human activities	Other human activities
sado-	sado-	Sadism, desire to inflict pain.		Human activities	Other human activities
tapho-	tapho-	Grave; burial.		Human activities	Other human activities
trib-	trib-	To pay.		Human activities	Other human activities
war-	war-	Relating to gaining access to network resources, such as Wi-Fi, by locating and exploiting unprotected access addresses.		Human activities	Other human activities

Types of media

Prefixes for forms of artistic expression by medium or genre.

Prefixes categorized as Types of media, Human activities.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acro-10	acr-10, acro-10, akro-10	Etching or engraving.	e.g. acrography, acrography	Human activities	Types of media
choreo-	choreo-	Dance, dancing.		Human activities	Types of media
cine-	cine-	Pertaining to film, movies, cinema.		Human activities	Types of media
ludo-	ludo-	Games, especially video games.		Human activities	Types of media
musico-	musico-	Music.		Human activities	Types of media
mytho-	mytho-	Mythology.		Human activities	Types of media
porn-	porn-, porno-	Pornography.		Human activities	Types of media

Landforms and ecosystems

Prefixes for macro-scale types of land, terrain, ecosystems, biomes, etc.

Ecosystems

Prefixes for types of natural ecosystems and biomes that are not landforms. Human-made ecosystems, such as cities, will be found under Social Facts.

Prefixes categorized as Ecosystems, Landforms and ecosystems.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
eleo-2	eleo-2	Marsh, bog.		Landforms and ecosystems	Ecosystems
erem-1	erem-1	Desert.		Landforms and ecosystems	Ecosystems
hylo-	hyl-, hylo-	Forests, wood.		Landforms and ecosystems	Ecosystems

Landforms

Prefixes for physical landforms.

Prefixes categorized as Landforms, Landforms and ecosystems.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
fluvio-	fluvio-	River.		Landforms and ecosystems	Landforms
glacio-	glaci-, glacio-	Glaciers.		Landforms and ecosystems	Landforms
limno-	limn-, limno-	Body of fresh water.		Landforms and ecosystems	Landforms
oro-2	oro-2	Mountains.	e.g. orogeny	Landforms and ecosystems	Landforms
potamo-	potam-, potamo-	River.		Landforms and ecosystems	Landforms
speleo-	speleo-	Cave.		Landforms and ecosystems	Landforms
tectono-	tecto-, tectono-	Plate tectonics.	e.g. tectonomagmatic, tectonomorphological, tectonostratigraphy	Landforms and ecosystems	Landforms
volcan-	volcan-	Volcanoes.		Landforms and ecosystems	Landforms

Oceanic

Prefixes that are used specifically for oceanic ecosystems. Note other terms such as "hydro" (for water) also get used for marine ecosystems and will be found under chemical substances. Lakes and rivers will be found under Landforms.

Prefixes categorized as Oceanic, Landforms and ecosystems.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
bathy-2	batho-2, bathy-2	Deep sea.		Landforms and ecosystems	Oceanic
halo-1	halo-1	The sea, sea water.		Landforms and ecosystems	Oceanic
mer-1	mer-1	Sea; marine.		Landforms and ecosystems	Oceanic
thalasso-	thalass-, thalasso-	The sea.		Landforms and ecosystems	Oceanic

Life stages

Ways of grouping organisms (human or non-human) other than by species, such as by life stages (e.g. gero- for the elderly) and gender roles (e.g. gyne- for female). Entries in this category must be applicable to individuals, and they must be applicable to non-humans.

Genders

Prefixes for an organism's gender, sex, or mating type.

Prefixes categorized as Genders, Life stages.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
andro-2	andr-2, andro-2	Man, male.	example(s) from : Android (robot)android, andrology, androgen	Life stages	Genders
ergato-	ergat-, ergato-	Worker, labourer. Used in biology to note worker organisms.	e.g. ergatoid, ergatomorphic, ergatocracy	Life stages	Genders
fem-	fem-	Femininity, women.		Life stages	Genders
gyne-	gyn-, gynaeco-, gyne-, gyneco-, gyno-, gynæc-, gynæco-	Women. Female reproductive system. Gynecology.	example(s) from: gynaecology, gynecomastia, gynoecium	Life stages	Genders
he-	he-	Male animal.		Life stages	Genders
male-1	male-1	Male, men.		Life stages	Genders
she-	she-	A female, usually an animal.		Life stages	Genders
thely-	thely-	Pertaining to women; feminine.	example(s) from: w:Thelygenous	Life stages	Genders

Life cycle

Stages of a typical (anthropocentric) life cycle. Alt-Sort: 1 for birth to 9 for death.

Prefixes categorized as Life cycle, Life stages.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
brepho-	brepho-	Baby.		Life stages	Life cycle
embryo-	embryo-	Embryos.		Life stages	Life cycle
epi-09	epi-09	(zoology) Epibiotic: an organism that lives on another organism.	e.g. epiparasitism, episymbiont, episymbiotic	Life stages	Life cycle
feto-	feto-, foeto-	Fetus.		Life stages	Life cycle
geronto-	gero-, geronto-	Senescence, the elderly.		Life stages	Life cycle
haplo-1	aplo-1, haplo-1	(genetics) Haploid: having a single set of unpaired chromosomes.	e.g. haplodepletion, haplodiploid, haplosis	Life stages	Life cycle
hebe-	hebe-	Youth.	e.g. hebephile	Life stages	Life cycle
juven-	juven-	Young.		Life stages	Life cycle
matri-	materno-, matr-, matri-	Mother, motherhood.		Life stages	Life cycle
mort-	mort-	Death.		Life stages	Life cycle
nat-	nat-, nati-, nato-	Birth.	example(s) from: neonatology	Life stages	Life cycle
necro-	necr-, necro-	Death.	example(s) from: necrosis, w:necrotizing fasciitis	Life stages	Life cycle
nympho-	nympho-	Nymph. Adolescent girl.		Life stages	Life cycle
pater-	pater-	Father, patriarch.		Life stages	Life cycle
patro-	patr-, patri-	Father, fatherhood.		Life stages	Life cycle
pedo-3	paedo-3', pedo-3', pædo-3'	Children.		Life stages	Life cycle
tecn-	tecn-, tecno-, tekn-	Child.		Life stages	Life cycle
teleio-	teleio-	Fully grown; adult.		Life stages	Life cycle
thanato-	thanato-	Death.	e.g. thanatochemistry, thanatography, thanatomania	Life stages	Life cycle

Lifeforms

Names of species, genera, families, or other groupings of living organisms. E.g. api- for bees.

Animals

Names of species, genera, families, etc within the animal kingdom.

Prefixes categorized as Animals, Lifeforms.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acaro-	acar-, acari-, acario-, acaro-	Mites, ticks.		Lifeforms	Animals
accipitr-	accipitr-	Hawk, bird of prey.		Lifeforms	Animals
acipenser-	acipenser-	Sturgeon.		Lifeforms	Animals
acrid-	acrid-, acrido-	Grasshopper.		Lifeforms	Animals
ailuro-	aeluro-, ailur-, ailuro-	Cat.		Lifeforms	Animals
andro-1	andr-1, andro-1	Human.	example(s) from : Android (robot)android, andrology, androgen	Lifeforms	Animals
anthropo-1	anthro-1, anthrop-1, anthropo-1	Man, human.	e.g.: anthropology, anthrophilia, anthrosylvan, anthropocentric	Lifeforms	Animals
api-	api-	Bee, bees.		Lifeforms	Animals
arachno-	arach-, arachn-, arachno-	Arachnids, spiders.		Lifeforms	Animals
arct-2	arct-2, arcto-2	Bears.		Lifeforms	Animals
ascar-	ascar-	Parasitic nematodal helminths of family Ascarididae.		Lifeforms	Animals
avi-	avi-	Birds, avians; flight.		Lifeforms	Animals
ceta-	ceta-	Whales.		Lifeforms	Animals
chiroptero-	chiroptero-	Relating to bats (the flying mammal).		Lifeforms	Animals
cyn-	cyn-, cyno-	Pertaining to dogs.		Lifeforms	Animals
dino-2	dino-2	Dinosaurs.		Lifeforms	Animals
ego-2	ego-2	Goats.		Lifeforms	Animals
entomo-	entomo-	Insects.		Lifeforms	Animals
herpet-1	herpet-1, herpeto-1	Reptile.		Lifeforms	Animals
hippo-	hipp-, hippo-	Horses.		Lifeforms	Animals
hydro-3	hydr-3, hydro-3	Hydrozoa.	e.g. Hydrozoa	Lifeforms	Animals
ichthyo-1	ichthy-1, ichthyo-1	Fish.		Lifeforms	Animals
ixod-	ixod-	Ticks.		Lifeforms	Animals
lyco-	lyc-, lyco-	Wolf.		Lifeforms	Animals
mer-2	mer-2	Applied to animals that are fully or partly sea-creatures.	e.g. mercow, mersnake, mereswine	Lifeforms	Animals
myrmeco-	myrmeco-	Ants.		Lifeforms	Animals
ophio-	ophid-, ophio-	Snakes.		Lifeforms	Animals
ornitho-	ornith-, ornitho-	Birds.		Lifeforms	Animals
ostreo-	ostreo-	Forms terms related to oysters.		Lifeforms	Animals
pisci-	pisci-	Fish.		Lifeforms	Animals
pitheco-	pitheco-	Ape.		Lifeforms	Animals
sauro-	sauro-	Lizard.		Lifeforms	Animals
simio-	simio-	Related to simians.		Lifeforms	Animals
spongo-	spongio-, spongo-	Sponge.		Lifeforms	Animals
tauro-	tauro-	Bull.		Lifeforms	Animals
therio-	theri-, therio-, thero-	Animal, beast.		Lifeforms	Animals
vacci-	vacci-	Cow, cows.		Lifeforms	Animals
vermi-	vermi-	Worm-shaped, worms.		Lifeforms	Animals
zoo-	zo-, zoo-, zoö-	Animal.	example(s) from: zoology	Lifeforms	Animals

Bacteria

Names of species, genera, families, etc within the bacterial kingdom.

Prefixes categorized as Bacteria, Lifeforms.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
bacillo-	bacillo-	Bacillus.		Lifeforms	Bacteria
bacterio-	bacter-, bacteri-, bacterio-	Bacteria, bacterial things, bacteriology.	example(s) from: bacteriophage, bactericide	Lifeforms	Bacteria
staphylo-1	staphylo-1	Pertaining to a microorganism cluster with a grape-like arrangement.		Lifeforms	Bacteria
trypano-	trypano-	Trypanosome.		Lifeforms	Bacteria

Fungi

Names of species, genera, families, etc within Kingdom Fungi.

Prefixes categorized as Fungi, Lifeforms.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aspergillo-	aspergill-, aspergillo-	aspergillus.		Lifeforms	Fungi
basidio-	basidio-	Basidium.		Lifeforms	Fungi
fungi-	fungi-	Fungi.		Lifeforms	Fungi
myco-	myc-, myco-	Fungus, mushroom.	example(s) from: onychomycosis	Lifeforms	Fungi

Plants

Names of species, genera, families, etc within Kingdom Plantae.

Prefixes categorized as Plants, Lifeforms.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
alli-	alli-	Garlic, aliums.		Lifeforms	Plants
ampel-	ampel-, ampelo-	Vine or grape.		Lifeforms	Plants
antho-	anth-, antho-	Pertaining to flowers.		Lifeforms	Plants
arbori-	arbor-, arbori-	Trees.		Lifeforms	Plants
bryo-	bry-, bryo-	Pertaining to mosses.		Lifeforms	Plants
cedr-	cedr-	Cedar.		Lifeforms	Plants
cran-	cran-	Cranberry.		Lifeforms	Plants
dendr-	dendr-, dendro-	Trees.		Lifeforms	Plants
flori-	flori-	Flowers.		Lifeforms	Plants
fructi-	fructi-, fructo-	Fruit.		Lifeforms	Plants
phyco-	phyco-	Seaweeds, algae.		Lifeforms	Plants
phyto-	phyto-	Plants.		Lifeforms	Plants
pterido-	pterid-, pterido-	Ferns.		Lifeforms	Plants
valero-	valero-	Valerian.		Lifeforms	Plants
vegeto-	vegeto-	Vegetable, vegetal.	e.g. vegeto-mineral, vegetoanimal	Lifeforms	Plants

Protists

Names of species, genera, families, etc within the protist kingdom.

Prefixes categorized as Protists, Lifeforms.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
amoebo-	ameb-, amebo-, amoeb-, amoebo-, amœb-, amœbo-	Amoeba.		Lifeforms	Protists
dino-4	dino-4	Dinoflagellates.		Lifeforms	Protists

Particles

Prefixes used to indicate atomic-level and subatomic particles in physics and chemistry.

Particles

Prefixes used to indicate atomic-level and subatomic particles in physics and chemistry.

Prefixes categorized as Particles, Particles.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
baryo-	baryo-	Baryon.		Particles	Particles
electro-2	electr-2, electro-2	Electrons.	example(s) from: electro-analysis, electromagnetic	Particles	Particles
hadro-	hadro-	Hadron, hadronic.		Particles	Particles
iono-	iono-	Ions.		Particles	Particles
nucleo-	nucleo-	Nuclear, a nucleus.		Particles	Particles
proto-7	prot-7, proto-7	Relating to protons and/or positive charge.	e.g. protophilic, protolysis	Particles	Particles

Physical properties

Properties that matter and energy can have (e.g elastic, acidic). Excludes colour, shapes, textures, and specific sounds (e.g. a thud), which all have strong psychological and cultural aspects to their sensory perception by humans, and hence have a category of their own.

Climactic conditions

Qualities of a climate: its humidity and its temperature. These terms are also used in contexts outside of describing climate.

Prefixes categorized as Climactic conditions, Physical properties.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
calor-	calor-	Heat.	e.g. calorimetry, calorific	Physical properties	Climactic conditions
climo-	climo-	Climate; weather patterns.		Physical properties	Climactic conditions
cryo-1	cry-1, cryo-1	Cold, freezing.	e.g. cryopedology, cryovolcano, cryopulverization	Physical properties	Climactic conditions
frig-	frig-	Cold.	e.g. frigorism, frigostabile, frigolabile	Physical properties	Climactic conditions
hygro-	hygr-, hygro-	Humidity.		Physical properties	Climactic conditions
psychro-2	psychro-2	Cold.	e.g. psychroplanet, psychroxerophytic, psychrometer	Physical properties	Climactic conditions
pyro-1	pyr-1, pyro-1	Fire, heat.	example(s) from: pyrokinetic, pyrotechnic	Physical properties	Climactic conditions
stygo-	stygo-	Dark and damp, like the Underworld.		Physical properties	Climactic conditions
thermo-	therm-, thermo-	Heat.	example(s) from: hypothermia, thermoregulation	Physical properties	Climactic conditions
udi-	udi-	Udic.		Physical properties	Climactic conditions
xeri-	xeri-	Dry, arid, particularly of a physical environment.	e.g. xeriscape, xeric	Physical properties	Climactic conditions
xero-	xer-, xero-	Dry, dryness.	example(s) from: xerostomia, xeroderma	Physical properties	Climactic conditions

Other physical properties

Chemicophysical properties that are not tastable, not about dryness or temperature, not a state of matter, not a colour, not a shape, and not a texture.

Prefixes categorized as Other physical properties, Physical properties.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
actino-3	actin-3, actino-3	Actinic; actinic radiation.	e.g. actinometer, actinochemistry, actinotherapy	Physical properties	Other physical properties
anti-6	ant-6, anti-6	(particle physics) Composed of antimatter.	e.g. antielectron, antigalaxy	Physical properties	Other physical properties
chromato-	chromat-, chromato-, chromo-1	Colour.	example(s) from: hemochromatosis	Physical properties	Other physical properties
elasto-	elasto-	Elastic.		Physical properties	Other physical properties
electro-1	electr-1, electro-1	Electricity, electric.	example(s) from: electro-analysis, electromagnetic	Physical properties	Other physical properties
galvano-	galvano-	Electricity, electric.		Physical properties	Other physical properties
gravito-	gravito-, gravo-	Acted upon by gravity.	e.g. gravitomagnetic, gravitoturbulent, gravitoinertial	Physical properties	Other physical properties
magnet-	fmagnet-, mag-, magneto-	Magnet, magnetism.		Physical properties	Other physical properties
metallo-	metallo-	Metal, metallic.		Physical properties	Other physical properties
ortho-13	orth-13, ortho-13	(physics) Of any molecule of the form X2 in which the two nuclei have parallel spin.	e.g. orthopositronium, orthohelium, orthoquarkonium	Physical properties	Other physical properties
phos-	phos-	Light and its chemical properties.	example(s) from: phosphene	Physical properties	Other physical properties
photo-	phot-, photo-	Light, electromagnetic radiation, radiant energy. photograph.	example(s) from: photoelectric, photography, photosynthesis	Physical properties	Other physical properties
radio-1	radi-1, radio-1	Radiation, radioactive.	e.g. radiotherapy, radioactinium, radiolucent	Physical properties	Other physical properties
scint-	scint-, scinti-	Scintillating.		Physical properties	Other physical properties
sono-1	sono-1	Sonic, sound. Used particularly for technologies that use sound.	e.g. sonomicrometry, sonobuoy, sonochemistry	Physical properties	Other physical properties
spectro-	spectro-	Optical spectra.	e.g. spectrometer, spectromicroscopy, spectrospatial	Physical properties	Other physical properties
super-9	super-9	Described using supersymmetry.	e.g. superparticle, superpartner, superWIMP	Physical properties	Other physical properties
techni-	techni-	Described using the technicolor model.	e.g. technibaryon, technilepton	Physical properties	Other physical properties
tono-4	ton-4, tono-4	Tension, tense, or stretched.	e.g. tonofibril, tonoplast	Physical properties	Other physical properties
tribo-	tribo-	Friction.		Physical properties	Other physical properties

States of matter

States of matter: liquid, gas, etc. Alt-Sort: 1: solid to 4: plasma.

Prefixes categorized as States of matter, Physical properties.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
atmo-	atmo-	Air, gas, steam.	e.g. atmosphere, atmometry, atmolysis	Physical properties	States of matter
hydro-4	hydr-4, hydro-4	Liquid.	e.g. hydrodynamics	Physical properties	States of matter
plasmo-	plasmo-	Plasma.		Physical properties	States of matter
pneumato-	pne-2, pneum-2, pneumat-, pneumato-, pneumo-2, pneumon-2, pneumono-2	Air; gas.	e.g. pneumatic, pneumotactile, pneumatometer, pneumothorax	Physical properties	States of matter
stereo-4	stereo-4	Solid.		Physical properties	States of matter

Tasteable properties

Chemicophysical properties that correspond to what the human gustatory system can taste.

Prefixes categorized as Tasteable properties, Physical properties.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acer-	acer-	Bitter, sour, sharp.		Physical properties	Tasteable properties
acido-	acido-	Acidic.		Physical properties	Tasteable properties
gluco-	gluco-	Sweet.	example(s) from: glucocorticoid, glucose	Physical properties	Tasteable properties
oleo-2	oleo-2	Oily.		Physical properties	Tasteable properties
picro-	picro-	Bitter.		Physical properties	Tasteable properties
pimelo-	pimelo-	Fatty.		Physical properties	Tasteable properties

Proper nouns

Capitalized prefixes for proper nouns, such as for countries, languages, and ethnic groups. Subcategorized in the following order:

Extant countries

Prefixes for contemporary countries. (Autonomous regions within contemporary countries may be found under Historical Nations.)

Prefixes categorized as Extant countries, Proper nouns.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
Abkhazo-	Abkhazo-	Abkhazia, Abkhaz.		Proper nouns	Extant countries
Afghano-	Afghano-	Afghanistan, Afghan, Afghanistani.		Proper nouns	Extant countries
Albano-	Albano-	Albanian, Albania.		Proper nouns	Extant countries
Americo-	Americo-, Amero-	America.		Proper nouns	Extant countries
Anglo-	Anglo-, anglo-	England, English. Anglo-Saxon.	e.g. Anglophone	Proper nouns	Extant countries
Armeno-	Armen-, Armeno-	Armenian, Armenia.		Proper nouns	Extant countries
Australo-	Australo-	Australia.		Proper nouns	Extant countries
Austro-	Austro-	Austria.	e.g. Austrophile, Austro-Hungarian	Proper nouns	Extant countries
Azero-	Azero-	Azerbaijani, Azerbaijan.		Proper nouns	Extant countries
Bangla-	Bangla-	Bangladesh, Bangladeshi.	e.g. Banglaphone.	Proper nouns	Extant countries
Batavo-	Batavo-	Relating to the Netherlands and Dutch culture.	e.g. Batavaphone	Proper nouns	Extant countries
Belaruso-	Belaruso-	Belarus, Belarussian.	e.g. Belarusophone	Proper nouns	Extant countries
Belgo-	Belgo-	Belgian; of or pertaining to Belgium or its people.		Proper nouns	Extant countries
Bosno-	Bosno-	Pertaining to Bosnia, Bosnians or the Bosnian lect.		Proper nouns	Extant countries
Brit-	Brit-, Britanno-, Brito-	Britain, Britannia, British. Breton language.	e.g. Brittophone	Proper nouns	Extant countries
Bulgaro-	Bulgaro-	Pertaining to Bulgaria, Bulgarians or the Bulgarian language.	e.g. Bulgarophone	Proper nouns	Extant countries
Burmo-	Burmo-	Burma, Burmese.		Proper nouns	Extant countries
Cambro-	Cambro-	Wales, Welsh.	e.g. Cambrophone	Proper nouns	Extant countries
Canado-	Canado-	Canadian, Canada.		Proper nouns	Extant countries
Chado-	Chado-	Chadian, Chad.		Proper nouns	Extant countries
Colombo-	Colombo-	Colombia.		Proper nouns	Extant countries
Congo-	Congo-	Congo region/countries.		Proper nouns	Extant countries
Croato-	Croato-	Croatia, Croatian.		Proper nouns	Extant countries
Cymro-	Cymro-	Wales, Welsh.	e.g. Cymrophone	Proper nouns	Extant countries
Cypro-	Cypro-	Cyprus; Cypriot.		Proper nouns	Extant countries
Czecho-	Czecho-	Czech Republic.; Czech.; Czechoslovakia.	e.g. Czechophone	Proper nouns	Extant countries
Dano-	Dano-	Pertaining to Denmark, Danish or the Danes.	e.g. Danophone	Proper nouns	Extant countries
Egypto-	Egypto-, Ægypto-	Egypt.		Proper nouns	Extant countries
Eritreo-	Eritreo-	Eritrean, Eritrea.		Proper nouns	Extant countries
Esto-	Esto-	Estonia, Estonian.		Proper nouns	Extant countries
Ethio-	Ethio-	Ethiopian, Ethiopia.		Proper nouns	Extant countries
Fil-	Fil-	The Fillipines, Fillipino.		Proper nouns	Extant countries
Finno-	Fenno-, Finno-	Finland, Finnish.		Proper nouns	Extant countries
Franco-	Franco-, franco-	French.	e.g. Francophone	Proper nouns	Extant countries
Gallo-	Gallo-	French.	e.g. Gallophone	Proper nouns	Extant countries
Georgio-	Georgio-	Georgian, Georgia.		Proper nouns	Extant countries
Germano-	Germano-, germano-	Germany.	e.g. Germanophone	Proper nouns	Extant countries
Greco-	Graeco-, Greco-, Græco-	Greek.	e.g. Grecophone	Proper nouns	Extant countries
Guiano-	Guiano-	Guiana, Guianan.		Proper nouns	Extant countries
Guineo-	Guineo-	Guinean, Guinea.		Proper nouns	Extant countries
Helleno-	Hellen-, Helleno-	Greek, pertaining to Greece (Hellas).	e.g. Hellenophone	Proper nouns	Extant countries
Helveto-	Helveto-	Swiss, Switzerland.		Proper nouns	Extant countries
Herzego-	Hercego-, Herzego-	Herzegovina, Herzegovinan.		Proper nouns	Extant countries
Hiberno-	Hiberno-	Ireland.		Proper nouns	Extant countries
Hispano-	Hispano-, hispano-	Spanish.	e.g. Hispanophone	Proper nouns	Extant countries
Hungaro-	Hungaro-	Hungary, Hungarian.		Proper nouns	Extant countries
Indo-	Indo-	India. East Indies. Indo-European.	example(s) from: Indo-European	Proper nouns	Extant countries
Indonesio-	Indonesio-	Indonesia, Indonesian.		Proper nouns	Extant countries
Irano-	Irano-	Iran, Iranian.	e.g. Iranophone	Proper nouns	Extant countries
Italo-	Italo-, italo-	Italian.	e.g. Italophone	Proper nouns	Extant countries
Japano-	Japano-	Japan, Japanese.	e.g. Japanophone	Proper nouns	Extant countries
Jordano-	Jordano-	Jordan, Jordanian.		Proper nouns	Extant countries
Kartvelo-	Karto-, Kartvelo-	Georgia, Georgian.		Proper nouns	Extant countries
Kazaco-	Kazaco-	Kazakhstan, Kazakh.		Proper nouns	Extant countries
Kenio-	Kenio-	Kenya, Kenyan.		Proper nouns	Extant countries
Khmero-	Khmer-, Khmero-	Cambodia, Cambodian, Khmer.		Proper nouns	Extant countries
Koreo-	Koreo-	Korea, Korean.		Proper nouns	Extant countries
Kyrgyzo-	Kyrgyzo-	Kyrgyzstan, Kyrgyz.	e.g. Kyrgyzophone	Proper nouns	Extant countries
Lebano-	Lebano-	Lebanon, Lebanese.		Proper nouns	Extant countries
Letto-	Letto-	Latvian, Latvia.	e.g. Lettophone	Proper nouns	Extant countries
Libyco-	Libyco-	Libya, Libyan.		Proper nouns	Extant countries
Litto-	Litto-	Lithuanian, Lithuania.		Proper nouns	Extant countries
Luso-	Lusitano-, Luso-, luso-	Portuguese, Portugal.	e.g. Lusophone	Proper nouns	Extant countries
Macedo-	Macedo-	Macedonia.		Proper nouns	Extant countries
Magyaro-	Magyaro-	Hungary, Hungarian, Magyar.		Proper nouns	Extant countries
Malayo-	Malayo-, Malaysio-	Malaysia, Malaysian.	e.g. Malayophone	Proper nouns	Extant countries
Mexico-	Mexico-	Mexico, Mexican.		Proper nouns	Extant countries
Mongolo-	Mongolo-	Mongolia, Mongols, Mongolian.		Proper nouns	Extant countries
Nepalo-	Nepalo-	Nepal, Nepali.		Proper nouns	Extant countries
Nigerio-	Nigerio-	Nigerian, Nigeria.		Proper nouns	Extant countries
Nippo-	Nippo-	Japanese, Japan.		Proper nouns	Extant countries
Norvego-	Norvego-	Norwegian, Norway.		Proper nouns	Extant countries
Omano-	Omano-	Oman, Omani.		Proper nouns	Extant countries
Pako-	Pak-, Pako-	Relating to Pakistani, Pakistan.		Proper nouns	Extant countries
Perso-	Perso-	Persia, Persian, Iran, Iranian.	e.g. Persophone	Proper nouns	Extant countries
Polono-	Polono-	Polish. of or pertaining to Poland.	e.g. Polonophone	Proper nouns	Extant countries
Romano-2	Romano-2	Romania, Romanian.		Proper nouns	Extant countries
Ruando-	Ruando-, Rwando-	Rwanda, Rwandan.	e.g. Rwandophone	Proper nouns	Extant countries
Russo-	Russo-	Russian.	e.g. Russophone	Proper nouns	Extant countries
Scoto-	Scoto-, Scotto-	Scottish, Scotland, or the historical Scotti people.		Proper nouns	Extant countries
Serbo-	Serbo-	Serbian.		Proper nouns	Extant countries
Siamo-	Siamo-	Pertaining to Thailand or to Thai(s).		Proper nouns	Extant countries
Sino-	Sino-	China.	e.g. Sinophone	Proper nouns	Extant countries
Slovako-	Slovako-	Pertaining to Slovakia or Slovakian.	e.g. Slovakophone	Proper nouns	Extant countries
Sloveno-	Sloveno-	Pertaining to Slovenia.		Proper nouns	Extant countries
Somali-	Somali-	Somalia, Somalian.		Proper nouns	Extant countries
Sudano-	Sudano-	Sudan.		Proper nouns	Extant countries
Sueco-	Sueco-, Swedo-	Pertaining to Sweden or Swedish.	e.g. Swedophone	Proper nouns	Extant countries
Syro-	Syro-	Syria.		Proper nouns	Extant countries
Tajiko-	Tajiko-	Tajikistaan, Tajik.		Proper nouns	Extant countries
Tanza-	Tanza-	Tanzania, Tanzanian.		Proper nouns	Extant countries
Teuto-	Teuto-, Teutono-	The Teutons, historical Germanic people, or present-day Germans.	e.g. Teutophone	Proper nouns	Extant countries
Tuniso-	Tuniso-	Tunisia, Tunisian.		Proper nouns	Extant countries
Turco-	Turco-, Turko-	Turkish, Turkey.	e.g. Turkophone	Proper nouns	Extant countries
Turkmeno-	Turkmeno-	Turkmen, Turkmenistan.		Proper nouns	Extant countries
Ugando-	Ugando-	Uganda.		Proper nouns	Extant countries
Ukraino-	Ukraino-, Ukro-	Ukranian.	e.g. Ukrainophone	Proper nouns	Extant countries
Uzbeco-	Uzbeco-	Uzbek, Uzbekistan.		Proper nouns	Extant countries

Historical countries

Prefixes used for former kingdoms, countries, nations, etc.

Prefixes categorized as Historical countries, Proper nouns.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
Akkado-	Akkado-	Akkad, Akkadia, Akkadian.		Proper nouns	Historical countries
Arameo-	Arameo-	Aram, Arameans.		Proper nouns	Historical countries
Arcado-	Arcado-	Arcadia.		Proper nouns	Historical countries
Aretino-	Aretino-	Arezzo.		Proper nouns	Historical countries
Aryo-	Aryo-	Aryan.		Proper nouns	Historical countries
Astur-	Astur-	Asturias, Asturian.		Proper nouns	Historical countries
Bastulo-	Bastulo-	Bastetani.		Proper nouns	Historical countries
Bavaro-	Bavaro-	Bavarian, Bavaria.		Proper nouns	Historical countries
Betico-	Betico-	Andalusia.		Proper nouns	Historical countries
Canaano-	Canaano-	Canaan.		Proper nouns	Historical countries
Cantabro-	Cantabro-	Cantabrian, Cantabria, Cantabri.		Proper nouns	Historical countries
Carpatho-	Carpatho-	Carpathia.		Proper nouns	Historical countries
Chukotko-	Chukotko-	Chukchi, Chukotka.		Proper nouns	Historical countries
Cornu-	Cornu-	Cornwall.		Proper nouns	Historical countries
Corso-	Corso-	Corsica, Corsican.		Proper nouns	Historical countries
Crimeo-	Crimeo-	Crimea, Crimean.		Proper nouns	Historical countries
Daco-	Daco-	Dacian.		Proper nouns	Historical countries
Dalmato-	Dalmato-	Pertaining to Dalmatia or Dalmatian.		Proper nouns	Historical countries
Dravido-	Dravido-	Dravidia.		Proper nouns	Historical countries
Elamo-	Elamo-	Elam.		Proper nouns	Historical countries
Emilio-	Emilio-	Emilia.		Proper nouns	Historical countries
Etrusco-	Etrusco-	Etruria, Etruscans.		Proper nouns	Historical countries
Galaico-	Galaico-	Galicia.		Proper nouns	Historical countries
Gotho-	Gotho-	Goths.		Proper nouns	Historical countries
Hetto-	Hetto-	Hattians.		Proper nouns	Historical countries
Hitto-	Hittito-, Hitto-	Hittites.		Proper nouns	Historical countries
Hurro-	Hurro-	Pertaining to Hurrian or the Hurrians.		Proper nouns	Historical countries
Illyro-	Illyro-	Pertaining to Illyria or Illyrian.		Proper nouns	Historical countries
Istro-	Istro-	Denoting Istrian origin or character, or a variety of [the prefixed element] associated with or pertaining to Istria.		Proper nouns	Historical countries
Jugo-	Jugo-	Yugoslavia, Yugoslavian.		Proper nouns	Historical countries
Kabardino-	Kabardino-	Kabardians.		Proper nouns	Historical countries
Lacono-	Lacono-	Sparta.		Proper nouns	Historical countries
Lechito-	Lechito-	Lechia, Lechite.		Proper nouns	Historical countries
Lemko-	Lemko-	Lemko.		Proper nouns	Historical countries
Liguro-	Liguro-	Liguria, Ligurian.		Proper nouns	Historical countries
Manju-	Manju-	Manchuria.		Proper nouns	Historical countries
Marchigiano-	Marchigiano-	Marche.		Proper nouns	Historical countries
Marcho-	Marcho-	Altmark.		Proper nouns	Historical countries
Medo-	Medo-	Pertaining to Media, Median or the Medes.		Proper nouns	Historical countries
Megleno-	Megleno-	Almopia.		Proper nouns	Historical countries
Messapo-	Messapo-	Messapii.		Proper nouns	Historical countries
Moeso-	Moeso-	Moesia.		Proper nouns	Historical countries
Moravo-	Moravo-	Moravia; Moravian.		Proper nouns	Historical countries
Myso-	Myso-	Mysia.		Proper nouns	Historical countries
Navarro-	Navarro-	Navarre, Navarrese.		Proper nouns	Historical countries
Normanno-	Normanno-	Normandy, the Normans, or the Norman language.		Proper nouns	Historical countries
Oromo-	Oromo-	Oromo.		Proper nouns	Historical countries
Osco-	Osco-	Oscan.		Proper nouns	Historical countries
Oto-	Oto-	Otomi.		Proper nouns	Historical countries
Phoenico-	Phoenico-	Phoenicia.		Proper nouns	Historical countries
Phrygio-	Phrygio-	Relating to Phrygia, the Phrygians or the Phrygian language.		Proper nouns	Historical countries
Picto-	Picto-	A combining form relating to Pictland (prehistoric northern and eastern Scotland) or Pictish people (Picts).		Proper nouns	Historical countries
Pisano-	Pisano-	Pisa.		Proper nouns	Historical countries
Prusso-	Prusso-	Prussia, Prussian.		Proper nouns	Historical countries
Punico-	Punico-	Carthage.		Proper nouns	Historical countries
Rhaeto-	Rhaeto-, Rhæto-	Rhaetia; Rhaetian.		Proper nouns	Historical countries
Romano-3	Romano-3	Rome, Roman.		Proper nouns	Historical countries
Rutheno-	Rutheno-	Ruthenia.		Proper nouns	Historical countries
Sardo-	Sardo-	Sardinia.		Proper nouns	Historical countries
Sarmato-	Sarmato-	Sarmatians.		Proper nouns	Historical countries
Saxo-	Saxo-	Saxons, Saxony.		Proper nouns	Historical countries
Scytho-	Scytho-	Pertaining to Scythia, Scythian or the Scythians.		Proper nouns	Historical countries
Sibero-	Sibero-	Siberia, Siberian.		Proper nouns	Historical countries
Siculo-	Siculo-	Sicily, Sicilian.		Proper nouns	Historical countries
Sovieto-	Sovieto-	Soviet Union.		Proper nouns	Historical countries
Sumero-	Sumero-	Sumerian.		Proper nouns	Historical countries
Tataro-	Tataro-	Tatarstan, Tatar.		Proper nouns	Historical countries
Thessalo-	Thessalo-	Thessaly.		Proper nouns	Historical countries
Thraco-	Thraco-	Thracian.		Proper nouns	Historical countries
Tibeto-	Tibeto-	Of or pertaining to Tibet.		Proper nouns	Historical countries
Tocharo-	Tocharo-	Tocharans.		Proper nouns	Historical countries
Tosco-	Tosco-	Tuscany.		Proper nouns	Historical countries
Turdetano-	Turdetano-	Turdetani, Turdetania.		Proper nouns	Historical countries
Tyrrheno-	Tyrrheno-	Tyrrhenia (Etruria).		Proper nouns	Historical countries
Ugro-	Ugro-	Ugric, Ugrian.		Proper nouns	Historical countries
Umbro-	Umbro-	Pertaining to Umbria or Umbrian.		Proper nouns	Historical countries
Vivaro-	Vivaro-	Vivarais (France).		Proper nouns	Historical countries
Yugo-	Yugo-	Yugoslavia, Yugoslavian.		Proper nouns	Historical countries

Languages

Prefixes used for the proper names of specific human languages. Because Extant Countries is subcategorized first, many languages will be found there as well.

Prefixes categorized as Languages, Proper nouns.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
Arabo-	Arabo-	Arabic.	e.g. Arabophone	Proper nouns	Languages
Aragono-	Aragono-	Aragon, Aragonese.		Proper nouns	Languages
Assyro-	Assyro-	Assyria.		Proper nouns	Languages
Berbero-	Berbero-	Berber.	e.g. Berberophone	Proper nouns	Languages
Catalano-	Catalano-	Catalonia; relating to Catalan culture, Catalan people or the Catalan language.		Proper nouns	Languages
Celto-	Celto-	Celtic.		Proper nouns	Languages
Checheno-	Checheno-	Chechen.		Proper nouns	Languages
Copto-	Copto-	Coptic.		Proper nouns	Languages
Gaelo-	Gaelo-	Gaelic.	e.g. Gaelophone	Proper nouns	Languages
Hebra-	Hebra-	Hebrew.		Proper nouns	Languages
Hindi-	Hindi-	Hindi.	e.g. Hindiphone	Proper nouns	Languages
Karelo-	Karelo-	Karelia; Karelian.		Proper nouns	Languages
Kurdo-	Kurdo-	Kurdish.	e.g. Kurdophone	Proper nouns	Languages
Marathi-	Marathi-	Marathi.	e.g. Marathiphone	Proper nouns	Languages
Occitano-	Occitano-	Occitania, Occitan.	e.g. Occitanophone	Proper nouns	Languages
Papuo-	Papuo-	Papua, Papuan.		Proper nouns	Languages
Provenço-	Provenço-	Provence, Provençal.		Proper nouns	Languages
Romano-1	Romano-1	Romani.		Proper nouns	Languages
Semito-	Semito-	Semites.		Proper nouns	Languages
Slavo-	Slavo-	Slavic.	e.g. Slavophone	Proper nouns	Languages
Swahili-	Swahili-	Swahili.		Proper nouns	Languages
Tagalo-	Tagalo-	Tagalog.		Proper nouns	Languages
Uralo-	Uralo-	Uralic languages.		Proper nouns	Languages
Urdu-	Urdu-	Urdu.	e.g. Urduphone	Proper nouns	Languages
Uto-	Uto-	Ute languages.		Proper nouns	Languages
Vasco-	Basco-, Vasco-	Basque, Basque Country.	e.g. Bascophone	Proper nouns	Languages
Zarma-	Zarma-	Zarma languages.	e.g. Zarmaphone	Proper nouns	Languages

Personal names

Prefixes used to construct names of people.

Prefixes categorized as Personal names, Proper nouns.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
Fitz-	Fitz-	(used in English surnames) Son of; especially used for the illegitimate sons of royalty.		Proper nouns	Personal names
La-	La-	(US, African-American Vernacular, anthroponymy) Used in African-American female given names.		Proper nouns	Personal names
Mac-	Mac-	A patronymic used to form common Irish and Scottish names, similar to the English -son.		Proper nouns	Personal names
Mc-	Mc-	A patronymic used to form common Irish and Scottish names, similar to the English -son. Used to create mock names.		Proper nouns	Personal names

Popular culture

Prefixes used to refer to the popular culture of a given country, or popular franchises.

Prefixes categorized as Popular culture, Proper nouns.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
Bat-	Bat-, bat-	Belonging to or associated with Batman.		Proper nouns	Popular culture
C-	C-	Chinese; used to denote nouns relating to the (popular) culture of China.		Proper nouns	Popular culture
J-	J-	Used to denote nouns for things originating in Japan.		Proper nouns	Popular culture
K-	K-	Korean; used to denote nouns relating to the (popular) culture of South Korea.		Proper nouns	Popular culture
Poké-	Poké-	Pertaining to the Pokémon media franchise.		Proper nouns	Popular culture
T-	T-	Thai; used to denote nouns relating to the (popular) culture of Thailand.		Proper nouns	Popular culture
V-	V-	Vietnamese; used to denote nouns relating to the (popular) culture of Vietnam.		Proper nouns	Popular culture

Regions

Supranational geographical regions based around notable physical geographic features e.g. mountain ranges, large deserts, etc. Alt-Sort: is it a Continent or Body of water?

Prefixes categorized as Regions, Proper nouns.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
Aegeo-	Aegeo-	The Aegean Sea.		Proper nouns	Regions
Afro-	Afro-	African.	e.g. Afrocentric, Afropop	Proper nouns	Regions
Aralo-	Aralo-	The Aral Sea, or pertaining to it.		Proper nouns	Regions
Arcto-	Arcto-	Of or relating to the Arctic.		Proper nouns	Regions
Balkano-	Balkano-	Pertaining to the Balkans.		Proper nouns	Regions
Balto-	Balto-	Baltic.		Proper nouns	Regions
Euro-	Eur-, eur-, Euro-	Europe, especially as a political entity.	example(s) from: Eurocentric	Proper nouns	Regions
Himalo-	Himalo-	The Himalayas.		Proper nouns	Regions
Ibero-	Ibero-	Iberian (Spain and Portugual).		Proper nouns	Regions
Inver-	Inver-	Mouth of a river.		Proper nouns	Regions
Latino-	Latino-	Latin, Latin America.		Proper nouns	Regions
Nilo-	Nilo-, Niloto-	The Nile river.		Proper nouns	Regions
noto-2	noto-2	South America.		Proper nouns	Regions
Saharo-	Saharo-	The Sahara.		Proper nouns	Regions
Sahelo-	Sahelo-	The Sahel.		Proper nouns	Regions
Scando-	Scando-	Pertaining to Scandinavia.		Proper nouns	Regions

Religions/philosophies

Prefixes used for the proper names of specific religious and philosophical movements.

Prefixes categorized as Religions/philosophies, Proper nouns.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
Berkeleio-	Berkeleio-	Berkeleian.		Proper nouns	Religions/philosophies
Christo-	Christiano-, Christo-	Christian, Christ.		Proper nouns	Religions/philosophies
Islamo-	Islamo-	Islam, Muslims.		Proper nouns	Religions/philosophies
Judeo-	Judaeo-, Judeo-, Judæo-	Judaism.		Proper nouns	Religions/philosophies
Qurano-	Qurano-	The Quran.		Proper nouns	Religions/philosophies

Social facts

Social facts in the Durkheimian sense: ideas, norms, values, etc that transcend the individual. Includes social institutions, social ranks, political movements, and mythological concepts. Unlike the category "Human acivities", which is verb-oriented, this category is noun-oriented.

Political and social movements

Social movements (e.g. the LGBTQ+ community), political movements (e.g. anarchism), and political philosophies (e.g. anarchy).

Prefixes categorized as Political and social movements, Social facts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
allo-16	allo-16	(LGBTQ) Not asexual; attracted to others.	e.g. alloromantic, alloerotic, allonormativity	Social facts	Political and social movements
bi-07	bi-07, bin-07, bis-07	(LGBTQ) Bisexual, relating to bisexuality.	e.g. bicentric, biphobia, biromantic	Social facts	Political and social movements
cis-3	cis-3	(gender) Being, or pertaining to being, cisgender or cissexual.	e.g. cisgender, cissexism, cisnormativity	Social facts	Political and social movements
inter-33	inter-33	(LGBTQ) Intersex: relating to intersex people.	e.g. intersexual, intergender	Social facts	Political and social movements
lesbo-	lesbo-	Lesbian.	e.g. lesbophobe, lesbophilia, lesbosexual	Social facts	Political and social movements
neuro-2	neur-2, neuri-2, neuro-2	Neurodivergent or neurodiversity.	e.g. neuroqueer, neurospicy	Social facts	Political and social movements
pan-07	pan-07, pano-07	Unification of a social group, the political movement to unify said group.	e.g. Pan-Africanism, pan-Indianism, pan-nationalism	Social facts	Political and social movements
pan-12	pan-12, pano-12	(LGBTQ) Pansexual or pansexuality.	e.g. pancurious, panphobia	Social facts	Political and social movements
trans-4	trans-4	Transgender or transsexual, or pertaining to those who are transgender or transsexual.	e.g. transmasculine, transfeminist, transphobia	Social facts	Political and social movements

Religion & mythology

Prefixes for concepts and entities from religion and mythology.

Prefixes categorized as Religion & mythology, Social facts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
demono-	demono-	Demon, demons.		Social facts	Religion & mythology
hagio-1	hagi-1, hagio-1	Pertaining to saints.	e.g. hagiolatry, hagiology, hagiomania	Social facts	Religion & mythology
hagio-2	hagi-2, hagio-2	holiness, holy people or objects.	e.g. hagiarchy, hagiotherapy, hagioscope	Social facts	Religion & mythology
hiero-1	hiero-1	Holy, sacred.		Social facts	Religion & mythology
hiero-2	hiero-2	Denoting a man of a title such as a monk who is also a clergyman.	e.g. hieromonk, hierodeacon, hieromartyr	Social facts	Religion & mythology
i-3	i-3	Used to transform English words into words used by Rastafarians with a special meaning.	e.g. Itesquake, Inity, Itinually	Social facts	Religion & mythology
magico-	magico-	Magic, magical.		Social facts	Religion & mythology
mer-3	mer-3	Mermaids, mermen.		Social facts	Religion & mythology
saint-	saint-	Saint.		Social facts	Religion & mythology
super-10	super-10	Regarding superheroes.		Social facts	Religion & mythology
thaumato-	thaumat-, thaumato-	Miracle, wonder, marvel.		Social facts	Religion & mythology
theo-	the-, theo-	Religion, gods, deities.		Social facts	Religion & mythology
were-	were-	Lycanthrope, werewolf.		Social facts	Religion & mythology

Social and political movements

Prefixes categorized as Social and political movements, Social facts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
anarcha-	anarcha-, anarcho-	Anarchism, anarchy.		Social facts	Social and political movements
aristo-2	aristo-2	Aristocracy.	e.g. aristocratic, aristodemocracy, aristomonarchy	Social facts	Social and political movements
eco-3	eco-3	Environmentalism, ecological sustainability.		Social facts	Social and political movements
enviro-2	enviro-2	Environmetalism.		Social facts	Social and political movements
hetero-05	heter-05, hetero-05	(LGBTQ) Straight, heterosexual.	e.g. heterocentric, heteroamorous, heterofemale	Social facts	Social and political movements
homo-2	homo-2	The gay community.	e.g. homonationalism, homonormativity	Social facts	Social and political movements
ochl-	ochl-	Mob, mob-rule.	e.g. ochlagogue, ochlocracy, ochlocrat	Social facts	Social and political movements
poly-3	poly-3	polyamory.	e.g. polycule, polyphobia, polyfamily	Social facts	Social and political movements
tyranno-	tyranno-, tyrrano-	Tyranny; tyrannical.		Social facts	Social and political movements

Social institutions

Prefixes for sociocultural institutions, interpreted broadly. Can refer to the groups in an institution, the institution itself, or a generalized conception of the institution.

Prefixes categorized as Social institutions, Social facts.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
agor-	agor-, agora-	Marketplace.		Social facts	Social institutions
aristo-1	aristo-1	Upper class, nobility.	e.g. aristocide, aristocracy	Social facts	Social institutions
clinico-	clinico-	Clinic; clinical.		Social facts	Social institutions
demo-1	demo-1	People, the public.	e.g. democracy, demolatry, demonym	Social facts	Social institutions
ecclesio-	ecclesio-	Church.		Social facts	Social institutions
gamo-1	gamo-1	Marriage.	e.g. gamomania, gamophobia	Social facts	Social institutions
geno-2	gen-2, geno-2	Family, tribe, race, offspring.	e.g. genocide, genophilia, genophobe	Social facts	Social institutions
iatro-	iatr-, iatro-	Pertaining to medical treatment.	example(s) from: iatrochemistry, iatrogenesis	Social facts	Social institutions
juridico-	juridico-	Jurisprudence, the law, legal infrastructure.		Social facts	Social institutions
leg-	leg-	Law, legal.		Social facts	Social institutions
metro-1	metr-1, metro-1	Metropolitan, city.	e.g. metropolis, metro-link	Social facts	Social institutions
nomo-1	nom-1, nomo-1	Law.		Social facts	Social institutions
normo-1	normo-1	Rule, order, norms.		Social facts	Social institutions
Of-	Of-	A regulatory body for a specified industry.		Social facts	Social institutions
papa-	papa-	Of or pertaining to the pope or the papacy.		Social facts	Social institutions
pluto-1	pluto-1	Wealth or money.		Social facts	Social institutions
pseph-	pseph-, psepho-	Pebble, stone. Voting, election, ballot box.		Social facts	Social institutions
religio-	religio-	Religion.		Social facts	Social institutions
val-	val-, valu-	Worth, value.		Social facts	Social institutions

Technologies

Regarding human-made objects that are produced from technical knowledge.

Communication technologies

Prefixes used to indicate a mode of communication or information storage, e.g. biblio- for book.

Prefixes categorized as Communication technologies, Technologies.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
biblio-	biblio-	Book.		Technologies	Communication technologies
carto-	carto-	Forms terms relating to maps.		Technologies	Communication technologies
cuneo-	cuneo-	Cuneate; cuniform.		Technologies	Communication technologies
cyber-	cyber-	Computer. cyberspace.		Technologies	Communication technologies
digi-3	digi-3, digit-3	Digital technologies.	e.g. digicam	Technologies	Communication technologies
e-2	e-2	In an electronic form, especially computerized and digital; often in association with the Internet.	e.g. email, ethlete, e-alert	Technologies	Communication technologies
e-5	e-5	Used to prefix items that are embedded into devices, instead of being discrete or removable elements.	e.g. eMMC, eSIM	Technologies	Communication technologies
i-4	i-4	Alluding to the internet.	e.g. BBC's iPlayer, iCarly	Technologies	Communication technologies
i-5	i-5	Alluding to digital devices and computer programs, especially those that are cutting-edge or fashionable, and those from Apple.	e.g. iPad, iPhone, iMac	Technologies	Communication technologies
icono-	icono-	Image, icon.		Technologies	Communication technologies
inter-32	inter-32	(technology) Internet: relating to the internet or computer networking.	e.g. internetted, interblag	Technologies	Communication technologies
libro-	libro-	Book.		Technologies	Communication technologies
papyro-	papyro-	Papyrus. Also used for paperwork.		Technologies	Communication technologies
radio-2	radi-2, radio-2	Radio waves, radio broadcasting.	e.g. radiotelemetry, radioacoustics, radiotelegraph	Technologies	Communication technologies
stylo-1	stylo-1	Style, stylus.		Technologies	Communication technologies
typo-	typ-, typo-	Print, writing, typography.	e.g. typolithography, typometer, typophile	Technologies	Communication technologies
vexillo-	vexillo-	Flags.		Technologies	Communication technologies
video-	video-	Moving images, especially television.		Technologies	Communication technologies

Tools and machine components

Prefixes for mechanical components.

Prefixes categorized as Tools and machine components, Technologies.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
acu-2	acu-2	Needle.		Technologies	Tools and machine components
e-3	e-3	A component in a mechanical system used for emergency purposes.	e.g. e-stop, e-brake	Technologies	Tools and machine components
turbo-1	turbo-1	A turbine.	e.g. turboprop, turboalternator, turboshaft	Technologies	Tools and machine components

Transportation

Prefixes used to indicate a mode of transportation, e.g. heli- for helicopter.

Prefixes categorized as Transportation, Technologies.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
aer-1	aer-1, aero-1, aër-1, aëro-1	Aircraft.	example(s) from : aerosinusitis, aerodynamics	Technologies	Transportation
auto-3	aut-3, auto-3	Car, driving.	e.g. autocross, autophile	Technologies	Transportation
heli-1	heli-1	Helicopter.		Technologies	Transportation
moto-1	moto-1	Motorcycle.		Technologies	Transportation
odo-	hodo-, odo-	Relating to roads.		Technologies	Transportation
velo-1	velo-1	Bicycle, cycling.		Technologies	Transportation

Types of technologies

Prefixes used to indicate the nature, rather than domain, of technologies.

Prefixes categorized as Types of technologies, Technologies.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
auto-2	aut-2, auto-2	Automatic technology.	e.g. autofocus, autowalk	Technologies	Types of technologies
cryo-3	cry-3, cryo-3	Cryonics.	e.g. cryonicist	Technologies	Types of technologies
e-4	e-4	Electric technology. Used to prefix product names, to indicate an electrified or all-electric variant of the product, particularly cars.	e.g. e-bike, e-stim, e-cigarette	Technologies	Types of technologies
nano-2	nan-2, nano-2	Nanotechnology.	e.g. nanobiology	Technologies	Types of technologies
qu-	qu-	Quantum computing.		Technologies	Types of technologies
robo-	robo-	Robot.		Technologies	Types of technologies
tele-2	tele-2	Technologies that operate over a distance: television, telegraph, telephone, etc.	e.g. telethon, telecast, telesale	Technologies	Types of technologies

Warfare

Prefixes for technologies used for warfare

Prefixes categorized as Warfare, Technologies.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
bur-	bur-	Fortification; used as a prefix for fortified locations.		Technologies	Warfare
hopl-1	hopl-1, hoplo-1	Weapon, arms, armed.		Technologies	Warfare

Weather and natural disasters

Prefixes for atmospheric and seismic conditions that cause weather and natural disasters.

Seismic

Prefixes for seismic conditions.

Prefixes categorized as Seismic, Weather and natural disasters.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
seismo-	seismo-	Earthquakes.		Weather and natural disasters	Seismic

Weather

Prefixes for forms of atmospheric conditions that cause weather.

Prefixes categorized as Weather, Weather and natural disasters.

Prefix	All forms	Definition	Example	Category	Subcat	Crosscat	Coord	Sort	Alt-Sort
alto-	alto-	Relating to clouds of middle étage.		Weather and natural disasters	Weather
anemo-	anem-, anemo-	Wind.		Weather and natural disasters	Weather
bronto-	bronto-	Thunder.		Weather and natural disasters	Weather
cerauno-	cerauno-	Thunderbolt, thunder, lightning.		Weather and natural disasters	Weather
chion-	chion-	Snow.		Weather and natural disasters	Weather
hyeto-	hyeto-	Rain, rainfall.		Weather and natural disasters	Weather
kerauno-	kerauno-	Thunderbolt, thunder, lightning.		Weather and natural disasters	Weather
meteoro-	meteoro-	Related to weather.		Weather and natural disasters	Weather
nepho-	nepho-	Clouds.		Weather and natural disasters	Weather
ombro-	ombro-	Rain.		Weather and natural disasters	Weather
pluvio-	pluvio-	Rain; rainfall.		Weather and natural disasters	Weather
strato-2	strato-2	Stratus clouds.		Weather and natural disasters	Weather