köken: From Old French furet, furret, from Vulgar Latin *fūrittus (literally “little thief”) (compare Italian furetto), diminutive of Latin fūr (“thief”). See also Old French fuiron (“weasel, ferret”), from Vulgar Latin *fūriō, fūriōnem, from Late Latin fūrō (“cat; robber”) (compare Portuguese furão), diminutive of Latin fūr (“thief”).