Imposture

Im*pos"ture (?), n. [L. impostura: cf. F. imposture. See Impone.] The act or conduct of an impostor; deception practiced under a false or assumed character; fraud or imposition; cheating.

From new legends
And fill the world with follies and impostures.
Johnson.

Syn. -- Cheat; fraud; trick; imposition; delusion.