umpire. An impartial person appointed to make an award or a final decision, usu. when a matter has been submitted to arbitrators who have failed to agree. • An arbitral submission may provide for the appointment of an umpire. — Also termed (in Scots law) oversman. [Cases: Arbitration  36. C.J.S. Arbitration §§ 59, 61–62.]
[Blacks Law 8th]