The Collaborative International Dictionary of English v.0.48:

Beswike \Be*swike"\, v. t. [AS. besw[imac]can; be- + sw[imac]can
   to deceive, entice; akin to OS. sw[imac]kan, OHG.
   sw[imac]hhan, Icel. sv[imac]kja.]
   To lure; to cheat. [Obs.] --Gower.
   [1913 Webster]