The Collaborative International Dictionary of English v.0.48:

Attrap \At*trap"\, v. t. [F. attraper to catch; [`a] (L. ad) +
   trappe trap. See Trap (for taking game).]
   To entrap; to insnare. [Obs.] --Grafton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Attrap \At*trap"\, v. t. [Pref. ad + trap to adorn.]
   To adorn with trapping; to array. [Obs.]
   [1913 Webster]

         Shall your horse be attrapped . . . more richly?
                                                  --Holland.
   [1913 Webster]