knuckle under

from WordNet (r) 3.0 (2006)

knuckle under
    v 1: consent reluctantly [syn: {yield}, {give in}, {succumb},
         {knuckle under}, {buckle under}]

from The Collaborative International Dictionary of English v.0.48

knuckle under \knuc`kle un"der\, v. i.
   To yield; to submit; -- usually used with to.
   [PJC]

from Moby Thesaurus II by Grady Ward, 1.0

27 Moby Thesaurus words for "knuckle under":
      accede, accept, acquiesce, assent, be agreeable, bow, capitulate,
      cave, comply, consent, defer, face the music, go along with,
      knock under, knuckle, knuckle down, live with it, not resist, obey,
      relent, resign, submit, succumb, swallow it, swallow the pill,
      take, take it

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