The Collaborative International Dictionary of English v.0.48:

Overmatch \O`ver*match"\, v. t.
   1. To be more than equal to or a match for; hence, to
      vanquish. --Drayton.
      [1913 Webster]

   2. To marry (one) to a superior. [Obs.] --Burton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Overmatch \O"ver*match`\, n.
   One superior in power; also, an unequal match; a contest in
   which one of the opponents is overmatched. --Milton. --D.
   Webster.
   [1913 Webster]