The story
- French · borrowed fromde rigueur“required”
- English todayde rigueur
Borrowed from French de rigueur (“required”), from de (“of”) + rigueur (“rigour/rigor”).
Etymology from Wiktionary, CC BY-SA 4.0.
de rigueur
de ri·gueurToday it means: Necessary according to etiquette, protocol or fashion. Full definition →
French de rigueur