[dupe] n [F, fr. MF duppe, prob. alter. of huppe hoopoe] (1681): one that is easily deceived or cheated: fool
[2]dupe vt duped ; dup.ing (1704): to make a dupe of -- dup.er n syn dupe, gull, trick, hoax mean to deceive by underhanded means. dupe suggests unwariness in the person deluded. gull stresses credulousness or readiness to be imposed on (as through greed) on the part of the victim. trick implies an intent to delude by means of a ruse or fraud but does not always imply a vicious intent. hoax implies the contriving of an elaborate or adroit imposture in order to deceive. [3]dupe n or vb (ca. 1900): duplicate