boutonniere

[ boot-n-eer, boo-tuh n-yair ]
/ ˌbut nˈɪər, ˌbu tənˈyɛər /

noun

a flower or small bouquet worn, usually by a man, in the buttonhole of a lapel.

Origin of boutonniere

1875–80; < French boutonnière buttonhole (bouton button + -ière suffix for things that facilitate the use of that denoted by the stem < Latin -āria -ary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for boutonniere

boutonniere

/ (ˌbʊtɒnɪˈɛə) /

noun

another name for buttonhole (def. 2)

Word Origin for boutonniere

C19: from French: buttonhole, from bouton button
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