ὑπηρετέω

For David, after he had served his own generation by the will of God, fell on sleep, and was laid unto his fathers, and saw corruption:

Yea, ye yourselves know, that these hands have ministered unto my necessities, and to them that were with me.

And he commanded a centurion to keep Paul, and to let him have liberty, and that he should forbid none of his acquaintance to minister or come unto him.