Source : Webster's Revised Unabridged Dictionary (1913)

Cozen \Coz"en\ (k?z"'n), v. t. [imp. & p. p. {Cozened} (-'nd);
   p. pr. & vb. n. {Cozening} (-'n-?ng). ] [From cousin, hence,
   literally, to deceive through pretext of relationship, F.
   cousiner.]
   To cheat; to defraud; to beguile; to deceive, usually by
   small arts, or in a pitiful way.

         He had cozened the world by fine phrases. --Macaulay.

         Children may be cozened into a knowledge of the
         letters.                                 --Locke.

         Goring loved no man so well but that he would cozen
         him, and expose him to public mirth for having been
         cozened.                                 --Clarendon.

Cozen \Coz"en\, v. i.
   To deceive; to cheat; to act deceitfully.

         Some cogging, cozening slave.            --Shak.

Source : WordNet®

cozen
     v 1: be false to; be dishonest with [syn: {deceive}, {lead on}, {delude}]
     2: act with artful deceit
     3: cheat or trick; "He cozened the money out of the old man"