ac•cedeækˈsid(v.i.)-ced•ed, -ced•ing.

1. to give one's consent, approval, or adherence by yielding; give in; agree; assent:

   to accede to a request; to accede to the terms of a contract.

2. to attain or assume an office, title, or dignity; succeed (usu. fol. by to):

   to accede to the throne.

3. to become a party to an agreement or treaty.

   Category: Law

Origin of accede:

1400–50; to approach, adapt to < L accēdere to approach, assent =ac-ac - +cēdere to go; see cede

ac•ced′er(n.)