bend, stoop, shut up, back away/off, retreat, surrender, buckle, weaken, yield, stand down, cope, comply, submit to, abandon (hope), ingratiate, relent, capitulate, lose ground, deign, defer to, give in/up, give up/in, hold in/back, recant, throw in the towel, step down, withdraw (demands), concede defeat, damp down, submit (one's resignation), admit defeat, knuckle under, sneak off, drop out (of a race), desist, disavow
bend, stoop, fold, break, compromise, concede, submit, retreat, surrender, buckle, cut one's losses, jettison, weaken, sink, hand over, abdicate, back (away/down), yield, forfeit, succumb, resign oneself to, accept, comply, conform, withdraw, lose, trade, repay, swap, wither, sacrifice, flag, relent, apologize, capitulate, oblige, wilt, give in/up, cave in, forgo, come away with, cave, drop (one's agenda), shut down (a venture), settle for, admit (defeat), promise to, agree to (monitoring), grant (copyright/authorship), waive (one's rights), split (the difference), be the bigger person, disavow