Main Entry:

¹um·pire

Pronunciation:

\ˈəm-ˌpī(-ə)r\

Function:

noun

Etymology:

Middle English oumpere, alteration (from misdivision of a noumpere) of noumpere, from Anglo-French nounpier, nompere, from nounpier, adjective, single, odd, from non- + per equal, from Latin par

Date:

15th century

1: one having authority to decide finally a controversy or question between parties: as a: one appointed to decide between arbitrators who have disagreed b: an impartial third party chosen to arbitrate disputes arising under the terms of a labor agreement 2: an official in a sport who rules on plays3: a military officer who evaluates maneuvers