1836, mangled Englishing of French chassé "gliding step" (in square dancing), literally "chased," past participle of chasser "to chase," from Old French chacier "to hunt," from Vulgar Latin *captiare (see capable, and compare chase, catch). Related: Sashayed; sashaying. The noun is attested from 1900.[sashay etymology, sashay origin, 英语词源]