[1] : The Collaborative International Dictionary of English v.0.48

accede \accede"\, v. i. imp.  p. p. acceded; p. pr.  vb.
   n. acceding. l. accedere to approach, accede; ad + cedere
   to move, yield: cf. f. acc'edere. see cede.
   1913 webster
   1. to approach; to come forward; -- opposed to recede.
      obs. --t. gale.
      1913 webster

   2. to enter upon an office or dignity; to attain.
      1913 webster

            edward iv., who had acceded to the throne in the
            year 1461.                            --t. warton.
      1913 webster

            if frederick had acceded to the supreme power.
                                                  --morley.
      1913 webster

   3. to become a party by associating one's self with others;
      to give one's adhesion. hence, to agree or assent to a
      proposal or a view; as, he acceded to my request.
      1913 webster

            the treaty of hanover in 1725 . . . to which the
            dutch afterwards acceded.             --chesterfield.
      1913 webster

   syn: to agree; assent; consent; comply; acquiesce; concur.
        1913 webster
see also:
acceded acceding cede recede 

[2] : WordNet (r) 2.0

accede
     v 1: submit or yield to another's wish or opinion; "the
          government bowed to the military pressure" syn: submit,
           bow, defer, give in
     2: take on duties or office; "accede to the throne" syn: enter
     3: to agree or express agreement; "the maestro assented to the
        request for an encore" syn: assent, acquiesce ant:
        dissent
see also:
submit bow defer give in enter assent 
acquiesce dissent 

[3] : Moby Thesaurus II by Grady Ward, 1.0

77 moby thesaurus words for "accede":
   ok, abide by, accede to, accept, acclaim, accord to, acquiesce,
   acquiesce in, agree, agree to, agree with, allow, applaud, approve,
   approve of, assent, attain to, be agreeable, be instated,
   be willing, buy, cheer, comply, concur, condescend, connive at,
   consent, consent to silently, cooperate, deign, endorse,
   face the music, give consent, give the nod, go along with, grant,
   hail, have no objection, hold with, in toto, knock under,
   knuckle down, knuckle under, let, live with it, mount the throne,
   nod, nod assent, not refuse, not resist, obey, okay, permit,
   ratify, receive, relent, resign, sanction, say aye, say yes,
   submit, subscribe, subscribe to, succumb, swallow it,
   swallow the pill, take, take it, take kindly to, take office,
   vote affirmatively, vote aye, vote for, welcome, wink at, yes,
   yield assent

Accede >> A Words
Accede, definition of term: Accede
accede_pag1.html

Accede To >> A Words
Accede To, definition of term: Accede To
accede+to_pag1.html