" accede "

[Verb]  | "ac*cede" | \ ak-ˈsēd \

1: to express approval or give consent : to agree to a request or demand —usually + to

2: to become a party to something (such as an agreement) —usually + to

3: to enter upon an office or position —usually + to

Origin: 15th century ;

 Middle English acceden "to come near, become adapted to," borrowed from Latin accēdere "to draw near, approach, side (with), be added (to)," from ad- {see: |ad-|ad-} + cēdere "to go away, yield" {mat|cede|};

[Idiom]  | "accede to the throne" 

1: to become king or queen

[Verb]  | "accede" 

[Verb]  | "accede (to)"