Definition 2022





lūceō (present infinitive lūcēre, perfect active luxī); second conjugation, no passive

  1. I shine
  2. (of the day) I dawn, become light
  3. I show through; I become visible
  4. I am conspicuous, apparent, evident


   Conjugation of luceo (second conjugation, active only)
indicative singular plural
first second third first second third
active present lūceō lūcēs lūcet lūcēmus lūcētis lūcent
imperfect lūcēbam lūcēbās lūcēbat lūcēbāmus lūcēbātis lūcēbant
future lūcēbō lūcēbis lūcēbit lūcēbimus lūcēbitis lūcēbunt
perfect luxī luxistī luxit luximus luxistis luxērunt, luxēre
pluperfect luxeram luxerās luxerat luxerāmus luxerātis luxerant
future perfect luxerō luxeris luxerit luxerimus luxeritis luxerint
subjunctive singular plural
first second third first second third
active present lūceam lūceās lūceat lūceāmus lūceātis lūceant
imperfect lūcērem lūcērēs lūcēret lūcērēmus lūcērētis lūcērent
perfect luxerim luxerīs luxerit luxerīmus luxerītis luxerint
pluperfect luxissem luxissēs luxisset luxissēmus luxissētis luxissent
imperative singular plural
first second third first second third
active present lūcē lūcēte
future lūcētō lūcētō lūcētōte lūcentō
non-finite forms active passive
present perfect future present perfect future
infinitives lūcēre luxisse
participles lūcēns
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
lūcēre lūcendī lūcendō lūcendum

Derived terms

Related terms


  • Old Provençal: luzir
  • Portuguese: luzir
  • Romanian: lucire
  • Romansch: glischar, glüschir
  • Sardinian: lúchere, lúgere, luxi
  • Spanish: lucir


  • luceo in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • luceo in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • Félix Gaffiot (1934), “luceo”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.
  • Meissner, Carl; Auden, Henry William (1894) Latin Phrase-Book, London: Macmillan and Co.
    • when it was day: ubi illuxit, luxit, diluxit
    • it is daylight: lucet
    • (ambiguous) at daybreak: prima luce
    • (ambiguous) in full daylight: luce (luci)
    • (ambiguous) to enjoy the privilege of living; to be alive: vita or hac luce frui
    • (ambiguous) to shun publicity: forensi luce carere
    • (ambiguous) this is as clear as daylight: hoc est luce (sole ipso) clarius
  1. “lucere” in: Alberto Nocentini, Alessandro Parenti, “l'Etimologico — Vocabolario della lingua italiana”, Le Monnier, 2010, ISBN 978-88-00-20781-2
  2. Edward A. Roberts, Bárbara Pastor, Diccionario etimológico indoeuropeo de la lengua española, Alianza Editorial 2009, ISBN 978-84-206-5252-8