demarche (n.)youdaoicibaDictYouDict[demarche 词源字典]
1650s, "walk, step," from French démarche (15c.) literally "gait, walk, bearing," from démarcher (12c.) "to march," from de- (see de-) + marcher (see march (v.)). Meaning "a diplomatic step" attested from 1670s. A word never quite anglicized.[demarche etymology, demarche origin, 英语词源]