post·date /ˌpos(t)ˈdet, ˈpos(t)ˌ/
  (vt.)填遲…的日期事後日期
  Post·date v. t. [imp. & p. p. Postdated; p. pr. & vb. n. Postdating.]
  1. 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.
  2. To affix a date to after the event.
  Post·date, a. Made or done after the date assigned.
     Of these [predictions] some were postdate; cunningly made after the thing came to pass.   --Fuller.
  Post·date, n. A date put to a bill of exchange or other paper, later than that when it was actually made.
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  postdate
       v 1: be later in time; "Tuesday always follows Monday" [syn: follow]
            [ant: predate]
       2: establish something as being later relative to something
          else [ant: predate]