wait on

(verb): To provide a service to (someone); to act as a servant to (someone); to serve (someone) as a waiter or waitress in a restaurant.
(verb): To wait for (a person).
(verb): To wait for (a thing, or an event to take place).
(verb): To be in store for (someone).
(verb): To visit (someone) as a courtesy, on business or for ceremony.
(verb): To occur as a consequence of (something), to result from (something).
(verb): To carry out or perform (a duty, function, etc.).
(verb): (of a hawk) To fly above its master, waiting till game is sprung.