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⇱ lucubrate - WordReference.com Dictionary of English

lucubrate

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈluːkjʊˌbreɪt/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈlukjʊˌbreɪt/ ,USA pronunciation: respelling(lo̅o̅′kyŏŏ brāt′)

Inflections of 'lucubrate' (v): (⇒ conjugate)
lucubrates
v 3rd person singular
lucubrating
v pres p
lucubrated
v past
lucubrated
v past p

WordReference Random House Learner's Dictionary of American English © 2026
lu•cu•brate /ˈlukyʊˌbreɪt/USA pronunciation   v. [no object], -brat•ed, -brat•ing. 
  1. to study hard and for long hours.
lu•cu•bra•tion /ˌlukyʊˈbreɪʃən/USA pronunciation  n. [uncountable]See -luc-.

WordReference Random House Unabridged Dictionary of American English © 2026
lu•cu•brate  (lo̅o̅′kyŏŏ brāt′),USA pronunciation v.i., -brat•ed, -brat•ing. 
  1. to work, write, or study laboriously, esp. at night.
  2. to write learnedly.
  • Latin lūcubrātus, past participle of lūcubrāre to work by artificial light, equivalent. to lūcu-, variant (before labials) of lūci-, combining form of lūcēre to shine + -br(um) instrumental suffix + -ā- theme vowel + -tus past participle suffix
  • 1615–25;
lu′cu•bra′tor, n. 

Collins Concise English Dictionary © HarperCollins Publishers::
lucubrate /ˈluːkjʊˌbreɪt/ vb
  1. (intransitive) to write or study, esp at night
Etymology: 17th Century: from Latin lūcubrāre to work by lamplightˈlucuˌbrator n
'lucubrate' also found in these entries (note: many are not synonyms or translations):
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