Accede
Part of speech: verb
Definition: To approach; to arrive; to come forward. To enter upon an office or dignity; to attain. To give one's adhesion; to join a group; to become part of a country etc. To agree or assent to a proposal or a view.
Assent
Part of speech: verb
Definition: To agree to, give approval to.
Part of speech: noun
Definition: agreement, act of agreeing