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See more synonyms for lucubrate on Thesaurus.com
verb (used without object), lu·cu·brat·ed, lu·cu·brat·ing.
  1. to work, write, or study laboriously, especially at night.
  2. to write learnedly.
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Origin of lucubrate

1615–25; < 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
Related formslu·cu·bra·tor, nounlu·cu·bra·to·ry [loo-kyoo-bruh-tawr-ee, -tohr-ee] /luˈkyu brəˌtɔr i, -ˌtoʊr i/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for lucubrate


  1. (intr) to write or study, esp at night
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Derived Formslucubrator, noun

Word Origin

C17: from Latin lūcubrāre to work by lamplight
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lucubrate


"to work at night," 1620s, from Latin lucubratus, past participle of lucubrare "to work by lamplight" (see lucubration). Literally, "to work by artificial light," hence "to work laboriously."

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Online Etymology Dictionary, © 2010 Douglas Harper