From Wiktionary, the free dictionary
Equivalent to -tōr ( agent suffix ) + -eō ( causative suffix ) , from Proto-Italic *-tōr + *-eō , from Proto-Indo-European *-tōr + *-éyeti . The Latin causative suffix is the same as found in the majority, but not all, second conjugation verbs; more at -eō .
-turiō (present infinitive -turīre , perfect active -turīvī , supine -turītum ) ; fourth conjugation
I desire, I wish (verbal suffix appended to various words to make a new word meaning to desire or wish for an action. )
pariō ( “ I bring forth ” ) + -turio → parturiō ( “ I am in labour ” )
nubō ( “ I veil, marry ” ) + -turio → nupturiō ( “ I wish to wed ” )
Sulla → *sullō ( “ I do as Sulla did ” ) → sullaturiō ( “ pessimistically jocular : I wish to imitate Sulla” )
Appending this suffix creates a fourth conjugation verb.
The -turio aspectual compounds are sometimes referred to as desiderative; the Late Latin era grammarians Priscianus and Diomedes use the phrase meditative, or verba meditativa, for this construction.
indicative
singular
plural
first
second
third
first
second
third
active
present
-turiō
-turīs
-turit
-turīmus
-turītis
-turiunt
imperfect
-turiēbam
-turiēbās
-turiēbat
-turiēbāmus
-turiēbātis
-turiēbant
future
-turiam
-turiēs
-turiet
-turiēmus
-turiētis
-turient
perfect
-turīvī , -turiī
-turīvistī , -turiistī
-turīvit , -turiit
-turīvimus , -turiimus
-turīvistis , -turiistis
-turīvērunt , -turīvēre , -turiērunt , -turiēre
pluperfect
-turīveram , -turieram
-turīverās , -turierās
-turīverat , -turierat
-turīverāmus , -turierāmus
-turīverātis , -turierātis
-turīverant , -turierant
future perfect
-turīverō , -turierō
-turīveris , -turieris
-turīverit , -turierit
-turīverimus , -turierimus
-turīveritis , -turieritis
-turīverint , -turierint
sigmatic future1
-turīssō
-turīssis
-turīssit
-turīssimus
-turīssitis
-turīssint
passive
present
-turior
-turīris , -turīre
-turītur
-turīmur
-turīminī
-turiuntur
imperfect
-turiēbar
-turiēbāris , -turiēbāre
-turiēbātur
-turiēbāmur
-turiēbāminī
-turiēbantur
future
-turiar
-turiēris , -turiēre
-turiētur
-turiēmur
-turiēminī
-turientur
perfect
-turītus + present active indicative of sum
pluperfect
-turītus + imperfect active indicative of sum
future perfect
-turītus + future active indicative of sum
subjunctive
singular
plural
first
second
third
first
second
third
active
present
-turiam
-turiās
-turiat
-turiāmus
-turiātis
-turiant
imperfect
-turīrem
-turīrēs
-turīret
-turīrēmus
-turīrētis
-turīrent
perfect
-turīverim , -turierim
-turīverīs , -turierīs
-turīverit , -turierit
-turīverīmus , -turierīmus
-turīverītis , -turierītis
-turīverint , -turierint
pluperfect
-turīvissem , -turiissem
-turīvissēs , -turiissēs
-turīvisset , -turiisset
-turīvissēmus , -turiissēmus
-turīvissētis , -turiissētis
-turīvissent , -turiissent
sigmatic aorist1
-turīssim
-turīssīs
-turīssīt
-turīssīmus
-turīssītis
-turīssint
passive
present
-turiar
-turiāris , -turiāre
-turiātur
-turiāmur
-turiāminī
-turiantur
imperfect
-turīrer
-turīrēris , -turīrēre
-turīrētur
-turīrēmur
-turīrēminī
-turīrentur
perfect
-turītus + present active subjunctive of sum
pluperfect
-turītus + imperfect active subjunctive of sum
imperative
singular
plural
first
second
third
first
second
third
active
present
—
-turī
—
—
-turīte
—
future
—
-turītō
-turītō
—
-turītōte
-turiuntō
passive
present
—
-turīre
—
—
-turīminī
—
future
—
-turītor
-turītor
—
—
-turiuntor
-turīre
-turīvisse , -turiisse
-turītūrum esse
-turīrī
-turītum esse
-turītum īrī
-turiēns
—
-turītūrus
—
-turītus
-turiendus , -turiundus
-turiendī
-turiendō
-turiendum
-turiendō
-turītum
-turītū
1 At least one use of the archaic "sigmatic future" and "sigmatic aorist" tenses is attested, which are used by Old Latin writers; most notably Plautus and Terence . The sigmatic future is generally ascribed a future or future perfect meaning, while the sigmatic aorist expresses a possible desire ("might want to").