arˈbitrager or usu arbitrageur /-tra-zhœrˈ/ noun

A person who carries out arbitrage (informal short form arb)

arˈbitral adjective (mainly Scots law)

arbitˈrament (now less usu arbitˈrement) noun

1. The decision of an arbiter
2. Determination
3. Power of decision

arˈbitrate intransitive verb and transitive verb

1. To decide, determine (archaic)
2. To refer to arbitration
3. To judge as arbiter or arbitrator

arbitrāˈtion noun

1. (submission to) the decision of an arbiter
2. In industrial relations and law, a method of settling a dispute by referring it to an independent body or arbitrator, both parties having agreed beforehand to abide by its decision

arˈbitrātor noun

1. An arbiter
2. A person who is appointed to determine a dispute or difference (law, etc)

arˈbitrātrix noun (archaic)

A female arbitrator

Arbitration Court noun (Aust and NZ)

A tribunal for the settlement of industrial disputes