The Collaborative International Dictionary of English v.0.48:

Decoy \De*coy"\ (d[-e]*koi"), v. t. [imp. & p. p. Decoyed
   (-koid"); p. pr. & vb. n. Decoying.] [Pref. de- + coy;
   orig., to quiet, soothe, caress, entice. See Coy.]
   To lead into danger by artifice; to lure into a net or snare;
   to entrap; to insnare; to allure; to entice; as, to decoy
   troops into an ambush; to decoy ducks into a net.
   [1913 Webster]

         Did to a lonely cot his steps decoy.     --Thomson.
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         E'en while fashion's brightest arts decoy,
         The heart, distrusting, asks if this be joy.
                                                  --Goldsmith.

   Syn: To entice; tempt; allure; lure. See Allure.
        [1913 Webster]