Nocturnal Definition

nŏk-tûrnəl
adjective
Of, done, or happening in the night.
Webster's New World
Having blossoms that open at night.
Webster's New World
Functioning or active during the night.
Webster's New World
Synonyms:
Antonyms:
diurnaldaytime

Origin of Nocturnal

  • From Latin nocturnus (“nocturnal, nightly"), from Latin nox (“night"), from Proto-Indo-European *nókÊ·ts (“night"). Cognates include Ancient Greek νύξ (nuks), Sanskrit नक्ति (nákti), Old English niht (English night) and Proto-Slavic *noťь.

    From Wiktionary

  • Middle English from Old French from Late Latin nocturnālis from Latin nocturnus from nox noct- night nekw-t- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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