umpire
noun
[ ˈʌmpʌɪə ]
• (in some sports) an official who watches a game or match closely to enforce the rules and arbitrate on matters arising from the play.
Similar:
referee,
linesman,
referee's assistant,
assistant referee,
judge,
line judge,
chair umpire,
adjudicator,
arbitrator,
arbiter,
moderator,
overseer,
supervisor,
ref,
ump,
umpire
verb
• act as an umpire in a game or match.
• "he could be seen regularly umpiring for the club"
Origin:
late Middle English (originally as noumpere ) (denoting an arbitrator): from Old French nonper ‘not equal’. The n was lost by wrong division of a noumpere ; compare with adder1.
