Postdate

Webster's Dictionary of the English Language

·adj Made or done after the date assigned.

II. Postdate ·vt To affix a date to after the event.

III. Postdate ·noun A date put to a bill of exchange or other paper, later than that when it was actually made.

IV. Postdate ·vt 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.