Definitions for overmatchˌoʊ vərˈmætʃ
Random House Webster's College Dictionary
to be more than a match for; surpass; defeat.
to match against a superior opponent or competitor.
Origin of overmatch:
1300–50; ME overmacchen
A match in which one opponent is very superior to the other
To match more than intended
The pattern overmatched, capturing the entire paragraph instead of the specific sentence.