endimanche

In the same way, Emperor William, although he gets his civilian clothes from some of the leading London tailors, invariably looks by no means to advantage in them, and suggests the French description of endimanche, that is to say, like a young man in his Sunday, go-to-meeting attire.

The Secret Memoirs of the Courts of Europe Fontenoy, Mme La Marquise De 1900

Strict Roland, compared to a Quaker endimanche, or

The French Revolution Thomas Carlyle 1838

In New York it always strikes an Englishman that the women look endimanche at whatever time of day you come across them. "

The Shuttle Frances Hodgson Burnett 1886