chisel (n.) Look up chisel at Dictionary.com
early 14c., from Anglo-French cisel, Old French cisel "chisel," in plural, "scissors, shears" (12c., Modern French ciseau), from Vulgar Latin *cisellum "cutting tool," from Latin caesellum, diminutive of caesus, past participle of caedere "to cut" (see -cide). Related: Chiseled; chiseling.
chisel (v.) Look up chisel at Dictionary.com
c.1500, "to break with a chisel," from chisel (n.). Slang sense of "to cheat, defraud" is first recorded in 1808 as chizzel; origin and connection to the older word are obscure (compare slang sense of gouge); chiseler in this sense is from 1918. Related: Chiseled; chiseling.