–noun
a person who practices deception under an assumed character,identity, or name.
Also, im·post·er.
Origin:
1580–90; < Late Latin, equivalent to Latin impos ( i )-, variantstem of impōnere to deceive, place on ( see impone) + -tor -tor
1580–90; < Late Latin, equivalent to Latin impos ( i )-, variantstem of impōnere to deceive, place on ( see impone) + -tor -tor