[adjective nahyt-lawng, -long; adverb nahyt-lawng, -long]


lasting all night: a nightlong snowfall.


through the entire night: They typed nightlong to finish the reports.

Origin of nightlong

before 1000; Middle English; Old English nihtlang (adv.) for the space of a night. See night, long1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nightlong

Contemporary Examples of nightlong

Historical Examples of nightlong

  • Then, almost imperceptibly, the frogs begin their nightlong din.

    The Sea and the Jungle

    H. M. Tomlinson

  • Nightlong did Wur watch over her, and the maid dreamed in sorrow, to wake weeping.

    The Stars in the Pool

    Edna Kingsley Wallace

  • Nightlong had she Roseheart is Troubledseen the vision of Flame, in whose eyes like the sea lay her white body floating.

    The Stars in the Pool

    Edna Kingsley Wallace

British Dictionary definitions for nightlong


adjective, adverb

throughout the night
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 nightlong

Old English nihtlang; see night + -long.

Online Etymology Dictionary, © 2010 Douglas Harper