Impostor
Pronunciation : Im*pos"tor
Part of Speech : n.
Etymology : [L. impostor a deceiver, fr. imponere to impose upon, deceive. See Impone.]
Definition : Defn: One who imposes upon others; a person who assumes a character or title not his own, for the purpose of deception; a pretender. "The fraudulent impostor foul." Milton.
Syn. -- Deceiver; cheat; rogue. See Deceiver.
Source : Webster's Unabridged Dictionary, 1913