illucesco

Latin

Alternative forms

• inlūcēscō
• illūcīscō, inlūcīscō

Etymology

From in- +‎ lūcēscō (“begin to shine”).

Pronunciation

• (Classical Latin) IPA^(key): /il.luːˈkeːs.koː/, [ɪlːʲuːˈkeːs̠koː]
• (modern Italianate Ecclesiastical) IPA^(key): /il.luˈt͡ʃes.ko/, [ilːuˈt͡ʃɛsko]

Verb

illūcēscō (present infinitive illūcēscere, perfect active illūxī); third conjugation, no supine stem

1. to begin to dawn
2. (transitive) to begin to light up

   ubi illuxit ― upon day breaks

Conjugation

• The third principal part is shared with illūceō.

   Conjugation of illūcēscō (third conjugation, no supine stem)

indicative		singular			plural
		first	second	third	first	second	third
active	present	illūcēscō	illūcēscis	illūcēscit	illūcēscimus	illūcēscitis	illūcēscunt
	imperfect	illūcēscēbam	illūcēscēbās	illūcēscēbat	illūcēscēbāmus	illūcēscēbātis	illūcēscēbant
	future	illūcēscam	illūcēscēs	illūcēscet	illūcēscēmus	illūcēscētis	illūcēscent
	perfect	illūxī, illūcēscī	illūxistī, illūcēscistī	illūxit, illūcēscit	illūximus, illūcēscimus	illūxistis, illūcēscistis	illūxērunt, illūxēre, illūcēscērunt, illūcēscēre
	pluperfect	illūxeram, illūcēsceram	illūxerās, illūcēscerās	illūxerat, illūcēscerat	illūxerāmus, illūcēscerāmus	illūxerātis, illūcēscerātis	illūxerant, illūcēscerant
	future perfect	illūxerō, illūcēscerō	illūxeris, illūcēsceris	illūxerit, illūcēscerit	illūxerimus, illūcēscerimus	illūxeritis, illūcēsceritis	illūxerint, illūcēscerint
passive	present	illūcēscor	illūcēsceris, illūcēscere	illūcēscitur	illūcēscimur	illūcēsciminī	illūcēscuntur
	imperfect	illūcēscēbar	illūcēscēbāris, illūcēscēbāre	illūcēscēbātur	illūcēscēbāmur	illūcēscēbāminī	illūcēscēbantur
	future	illūcēscar	illūcēscēris, illūcēscēre	illūcēscētur	illūcēscēmur	illūcēscēminī	illūcēscentur
subjunctive		singular			plural
		first	second	third	first	second	third
active	present	illūcēscam	illūcēscās	illūcēscat	illūcēscāmus	illūcēscātis	illūcēscant
	imperfect	illūcēscerem	illūcēscerēs	illūcēsceret	illūcēscerēmus	illūcēscerētis	illūcēscerent
	perfect	illūxerim, illūcēscerim	illūxerīs, illūcēscerīs	illūxerit, illūcēscerit	illūxerīmus, illūcēscerīmus	illūxerītis, illūcēscerītis	illūxerint, illūcēscerint
	pluperfect	illūxissem, illūcēscissem	illūxissēs, illūcēscissēs	illūxisset, illūcēscisset	illūxissēmus, illūcēscissēmus	illūxissētis, illūcēscissētis	illūxissent, illūcēscissent
passive	present	illūcēscar	illūcēscāris, illūcēscāre	illūcēscātur	illūcēscāmur	illūcēscāminī	illūcēscantur
	imperfect	illūcēscerer	illūcēscerēris, illūcēscerēre	illūcēscerētur	illūcēscerēmur	illūcēscerēminī	illūcēscerentur
imperative		singular			plural
		first	second	third	first	second	third
active	present	—	illūcēsce	—	—	illūcēscite	—
	future	—	illūcēscitō	illūcēscitō	—	illūcēscitōte	illūcēscuntō
passive	present	—	illūcēscere	—	—	illūcēsciminī	—
	future	—	illūcēscitor	illūcēscitor	—	—	illūcēscuntor
non-finite forms		active			passive
		present	perfect	future	present	perfect	future
infinitives		illūcēscere	illūxisse, illūcēscisse	—	illūcēscī	—	—
participles		illūcēscēns	—	—	—	—	illūcēscendus, illūcēscundus
verbal nouns		gerund				supine
		genitive	dative	accusative	ablative	accusative	ablative
		illūcēscendī	illūcēscendō	illūcēscendum	illūcēscendō	—	—

Related terms

• illūceō
• lūceō
• lūcēscō

References

• “illucesco”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• illucesco in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• illucesco in Enrico Olivetti, editor (2003-2025), Dizionario Latino, Olivetti Media Communication