noun, plural night·ies.


or night·y


noun Informal.

Origin of nightie

First recorded in 1890–95; night(gown) + -ie Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nighty

Historical Examples of nighty

  • He looked narrowly into the frank, engaging eyes of the boy in the nighty.

    Truxton King

    George Barr McCutcheon

  • The whole matter appeared so painful to them I covered up the offending "nighty" with my dressing-gown, and coughed.

    Red Hair

    Elinor Glyn

  • And she took her little handkerchief out of the pocket of her nighty and began to wipe her eyes with it.

    The Wonderful Bed

    Gertrude Knevels

  • I got to thinking of accidents, and I thought how disagreeable it would be to turn out into the snow in my nighty.

  • Here once on a warm night Holly had appeared in her 'nighty,' having had a bad dream, to have the clutch of it released.

British Dictionary definitions for nighty



noun plural nighties

informal short for nightdress
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 nighty



1871, short for nightgown; originally a children's word.

Online Etymology Dictionary, © 2010 Douglas Harper