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de rigueur

[duh ri-gur; French duh ree-gœr]
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adjective
  1. strictly required, as by etiquette, usage, or fashion.

Origin of de rigueur

Borrowed into English from French around 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for de rigueur

de rigueur

adjective
  1. required by etiquette or fashion

Word Origin

literally: of strictness
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 de rigueur

1849, French, literally "of strictness," thus "according to obligation of convention." See rigor.

Online Etymology Dictionary, © 2010 Douglas Harper

de rigueur in Culture

de rigueur

[(duh ree-gur)]

A French term meaning necessary according to convention: “Formal dress is de rigueur at weddings.”

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.