Postdate

['pəʊst'deɪt] or ['post'det]

(verb.) establish something as being later relative to something else.

(verb.) be later in time; 'Tuesday always follows Monday'.

Checker: Raymond--From WordNet

(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.

(v. t.) To affix a date to after the event.

(a.) Made or done after the date assigned.

(n.) A date put to a bill of exchange or other paper, later than that when it was actually made.

Checker: Mara