iacio

Latin

Alternative forms

jaciō

Etymology

From Proto-Italic *jakjō (“throw (down?)”), from Proto-Indo-European *(H)yéh₁-k-t, from Proto-Indo-European *(H)yeh₁- (“to throw, let go”). Compare iaceō.^[1]

Cognate with Ancient Greek ἵημι (híēmi, “to send, throw”).

Pronunciation

(Classical Latin) IPA^(key): /ˈi̯a.ki.oː/, [ˈi̯äkioː]
(modern Italianate Ecclesiastical) IPA^(key): /ˈja.t͡ʃi.o/, [ˈjäːt͡ʃio]

Verb

iaciō (present infinitive iacere, perfect active iēcī, supine iactum); third conjugation iō-variant

to throw, hurl, cast, fling; throw away
Synonyms: coniciō, iniciō, adiciō, obiciō, abiciō, iaculor, iactō, trāiciō, impingō, ēmittō, mittō, permittō, lībrō

Alea iacta est. ― The die has been cast.(Caesar)
to lay, set, establish, build, found, construct, erect
fundamenta iacere ― to lay the foundations/groundwork
to send forth, emit; bring forth, produce
Synonyms: ēmittō, prōdō, ēdō, effundō, mittō
to scatter, sow, throw
(as a shadow) to project
(figuratively) to throw out in speaking, let fall, utter, mention, declare

Conjugation

Conjugation of iaciō (third conjugation iō-variant)

indicative		singular			plural
indicative		first	second	third	first	second	third
active	present	iaciō	iacis	iacit	iacimus	iacitis	iaciunt
	imperfect	iaciēbam	iaciēbās	iaciēbat	iaciēbāmus	iaciēbātis	iaciēbant
	future	iaciam	iaciēs	iaciet	iaciēmus	iaciētis	iacient
	perfect	iēcī	iēcistī	iēcit	iēcimus	iēcistis	iēcērunt, iēcēre
	pluperfect	iēceram	iēcerās	iēcerat	iēcerāmus	iēcerātis	iēcerant
	future perfect	iēcerō	iēceris	iēcerit	iēcerimus	iēceritis	iēcerint
passive	present	iacior	iaceris, iacere	iacitur	iacimur	iaciminī	iaciuntur
	imperfect	iaciēbar	iaciēbāris, iaciēbāre	iaciēbātur	iaciēbāmur	iaciēbāminī	iaciēbantur
	future	iaciar	iaciēris, iaciēre	iaciētur	iaciēmur	iaciēminī	iacientur
	perfect	iactus + present active indicative of sum
	pluperfect	iactus + imperfect active indicative of sum
	future perfect	iactus + future active indicative of sum
subjunctive		singular			plural
subjunctive		first	second	third	first	second	third
active	present	iaciam	iaciās	iaciat	iaciāmus	iaciātis	iaciant
imperfect	iacerem	iacerēs	iaceret	iacerēmus	iacerētis	iacerent
perfect	iēcerim	iēcerīs	iēcerit	iēcerīmus	iēcerītis	iēcerint
pluperfect	iēcissem	iēcissēs	iēcisset	iēcissēmus	iēcissētis	iēcissent
passive	present	iaciar	iaciāris, iaciāre	iaciātur	iaciāmur	iaciāminī	iaciantur
imperfect	iacerer	iacerēris, iacerēre	iacerētur	iacerēmur	iacerēminī	iacerentur
perfect	iactus + present active subjunctive of sum
pluperfect	iactus + imperfect active subjunctive of sum
imperative		singular			plural
imperative		first	second	third	first	second	third
active	present	—	iace	—	—	iacite	—
active	future	—	iacitō	iacitō	—	iacitōte	iaciuntō
passive	present	—	iacere	—	—	iaciminī	—
passive	future	—	iacitor	iacitor	—	—	iaciuntor
non-finite forms		active			passive
non-finite forms		present	perfect	future	present	perfect	future
infinitives		iacere	iēcisse	iactūrum esse	iacī	iactum esse	iactum īrī
participles		iaciēns	—	iactūrus	—	iactus	iaciendus, iaciundus
verbal nouns		gerund				supine
		genitive	dative	accusative	ablative	accusative	ablative
		iaciendī	iaciendō	iaciendum	iaciendō	iactum	iactū

Derived terms

Related terms

iaceō (see there for further descendants)

References

^ De Vaan, Michiel (2008) “iaciō, -ere”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, pages 292-3

“jacio”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“iacio”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
iacio in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎^[1], London: Macmillan and Co.
- (ambiguous) to be broken down by misfortune: in malis iacere
- (ambiguous) to let fall an expression: voces iacere (Sall. Iug. 11)
- (ambiguous) to use threats: minas iacere, iactare
- (ambiguous) to lay the foundations: fundamenta iacere, agere
- (ambiguous) to discharge missiles: tela iacere, conicere, mittere
- (ambiguous) to be out of range: extra teli iactum, coniectum esse
- (ambiguous) to raise a rampart, earthwork: vallum iacere, exstruere, facere
- (ambiguous) to drop anchor: ancoras iacere

[1] De Vaan, Michiel (2008) “iaciō, -ere”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, pages 292-3

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