arbitrare bedeutet auf Englisch

referee [refereed, refereeing, referees]▼(to act as a judge of a game or contest)
verb
[UK: ˌre.fə.ˈriː] [US: ˌre.fə.ˈriː]

stand [stood, standing, stands]▼(to act as an umpire)
verb
[UK: stænd] [US: ˈstænd]