Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

724. Mediation — N. mediation, mediatorship†, mediatization†;

intervention, interposition, interference, intermeddling, intercession; arbitration; flag of truce &c 723; good offices, peace offering; parley, negotiation; diplomatics†, diplomacy; compromise &c 774. [person who mediates] mediator, arbitrator, intercessor, peacemaker, makepeace†, negotiator, go-between; diplomatist &c (consignee) 758; moderator; propitiator; umpire. V. mediate, mediatize†; intercede, interpose, interfere, intervene; step in, negotiate; meet halfway; arbitrate; magnas componere lites [Lat.]. bargain &c 794 Adj. mediatory.