What is another word for "halfway"?

Roget's Thesaurus (1911) lists these synonyms for "halfway": abatement, abide, adjust, adjustment, agree, and, arbitrate, arbitration, arbitrator, arrange, bargain, best, bridge, circle, come, commutation, commute, compensation, composition, compound, compromise, concession, consignee, contract, course, cross, cut, deed, difference, diplomacy, diplomatics, diplomatist, direct, even, flag, for, give, go-between, golden, good.