(1):
(n.) A date put to a bill of exchange or other paper, later than that when it was actually made.
(2):
(a.) Made or done after the date assigned.
(3):
(v. t.) To date after the real time; as, to postdate a contract, that is, to date it later than the time when it was in fact made.
(4):
(v. t.) To affix a date to after the event.