To make (something) perpetual; to make (something) continue for an indefinite time; also, to preserve (something) from extinction or oblivion.
To prolong the existence of (something) by repetition; to reinforce.
To record (the testimony of a witness) which may be lost before a matter comes to trial.
Perpetual, or made perpetual; continued for an indefinite time.
To keep in possession or use.
To employ by paying a retainer.
To hold back (a pupil) instead of allowing them to advance to the next class or year.
To keep in one's pay or service.
To hold secure.