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From Proto-Indo-European *lewk-o-dʰro-, which is derived from Proto-Indo-European *lewk-. Cognate to lūx (light) and lūceō (I am light).



present active lūcubrō, present infinitive lūcubrāre, perfect active lūcubrāvī, supine lūcubrātum

  1. (intransitive) I work by night, candlelight or lamplight, lucubrate.
  2. (transitive) I make, produce or compose by night, candlelight or lamplight.

Usage notes[edit]

  • In ordinary Classical Latin pronunciation, when br co-occur intervocalically at a syllabic boundary (denoted in pronunciatory transcriptions by <.>), both consonants are considered to belong to the latter syllable; if the former syllable contains only a short vowel (and not a long vowel or a diphthong), then it is a light syllable. Where the two syllables under consideration are a word's penult and antepenult, this has a bearing on stress, because a word whose penult is a heavy syllable is stressed on that syllable, whereas one whose penult is a light syllable is stressed on the antepenult instead. In poetic usage, where syllabic weight and stress are important for metrical reasons, writers sometimes regard the b in such a sequence as belonging to the former syllable; in this case, doing so alters the word's stress. For more words whose stress can be varied poetically, see their category.


Derived terms[edit]

Related terms[edit]



  • lucubro” in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879.