Webster's Revised Unabridged Dictionary · 1913

Overmatch

Overmatch , transitive verb

1.
To be more than equal to or a match for; hence, to vanquish. — Drayton
2.
To marry (one) to a superior. [Obsolete] — Burton

Overmatch , noun

One superior in power; also, an unequal match; a contest in which one of the opponents is overmatched. — Milton