What is another word for "abatement"?

Roget's Thesaurus (1911) lists these synonyms for "abatement": abate, abide, abridge, abridgment, adjust, adjustment, agio, agree, allow, allowance, and, anticlimax, arbitration, arrange, attenuate, away, backwardation, bargain, bate, below, best, bridge, business, coarctation, come, commutation, commute, compensation, composition, compound, compromise, concession, contango, contract, contraction, coupon, crumble, decay, declension, decline.