Mayor \May"or\, n. [OE. maire, F. maire, fr. L. major greater, higher, nobler, compar. of magnus great; cf. Sp. mayor. See Major, and cf. Merino.]

The chief magistrate of a city or borough; the chief officer of a municipal corporation. In some American cities there is a city court of which the major is chief judge.

Source: Webster's Revised Unabridged Dictionary (1913)