Dupe

Dupe (dūp), n. [F., prob. from Prov. F. dupe, dube; of unknown origin; equiv. to F. huppe hoopoe, a foolish bird, easily caught. Cf. Armor. houpérik hoopoe, a man easily deceived. Cf. also Gull, Booby.] One who has been deceived or who is easily deceived; a gull; as, the dupe of a schemer.