From Latin lūcubrātus, perfect passive participle of lūcubrō (work by candlelight), from lūx (light).

“To burn the midnight oil.”

“To make a deadline.”

lucubrate (third-person singular simple present lucubratespresent participle lucubratingsimple past and past participle lucubrated)

  1. (rare) To work diligently by artificial light; to study at night.
    • 1991 December, K. Boo, “The organization woman”, in The Washington Monthly, volume 23, issue 12, page 44:
      Instead, as Oklahoma’s tenure committee lucubrated over Hill’s future, []
  2. To work or write like a scholar.
    • 1846Nathaniel Chipman, in Daniel ChipmanThe Life of Hon. Nathaniel Chipman, LL.D.p. 261,
      [] I shall not hesitate to repeat some of my former thoughts, when lucubrating upon the same subject.
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