1325-75;Middle English < Anglo-French, variant of Old Frenchcisel < Vulgar Latin*cīsellus, diminutive of *cīsus, for Latincaesus, past participle of caedere to cut, with -ī- generalized from prefixed derivatives; cf. excide
1323, from O.Fr. cisel, from V.L. *cisellum "cutting tool," from L. caesellum, dim. of caesus pp. of caedere "to cut" (see concise). Slang sense of "to cheat, defraud" is first recorded in 1808 as chizzel; origin and connection to the older word are obscure.