de rigueur

Meanings

1. 1
   adj

   required by custom, etiquette, convention, or current fashion

   Formal evening dress was de rigueur at the diplomatic reception.

Simplified etymology

De rigueur entered English from French in the mid-19th century and literally conveys “in strictness, required.”

Borrowed from French de rigueur, literally "of strictness" or "required by strict usage," from de ("of") + rigueur ("strictness, severity"). English adopted the phrase for whatever convention or fashion makes practically compulsory.

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External links

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