ar·bi·trate /'är-bə-ˌtrāt/ vb -trat·ed, -trat·ingvt1: to act as arbitrator for2: to bring to arbitration for settlementagreed to arbitrate their disputevi: to act as arbitratorar·bi·tra·tive /-ˌtrā-tiv/ adj
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.
adjudicate, arrange, arrive at a conclusion, ascertain after reasoning, assess, conciliate, decide, decide between opposing parties, decree, decree authoritatively, determine, determine a controversy, determine a point at issue, dijudicare, end by a decision, fix conclusively, give judgment, judge, judicate, lead to a decision, make a decision, mete out, order, pass judgment, pronounce formally, pronounce judgment, resolve, rule, settle, settle by authoritative decision, sit in judgment
associated concepts: mediate
accord, adjust differences, arrange, bring into agreement, bring into harmony, bring to terms, bring together, disceptare, harmonize, intercede, intervene, make compatible, make peace between, moderate, negotiate, prevail with, propitiate, put in accord, reconcile, referee, regulate, render compatible, render concordant, render no longer opposed, restore harmony, settle, settle differences
adjudge, adjudicate, decide, intercede, judge, mediate, negotiate, reconcile
Burton's Legal Thesaurus. William C. Burton. 2006