Merriam-Webster's Collegiate Dictionary
post·date
\\ˌpōs(t)-ˈdāt, ˈpōs(t)-ˌ\\ transitive verb DATE 1624
1.
a. to date with a date later than that of execution
postdate a check
b. to assign (an event) to a date subsequent to that of actual occurrence2. to follow in time post-date
post-date (v.)
1624, from post- + date (v.) "to assign a date to, to mark a date on."
Oxford Advanced Learner's Dictionary-牛津双解-OALD7
post-date7post-'date verb [VN]1. to write a date on a cheque that is later than the actual date so that the cheque cannot be
cashed
(= exchanged for money) until that date
把(支票日期)填迟；预填(支票)日期；签迟日期⇨ compare
backdate
(1)
2. to happen, exist or be made at a later date than sth else in the past
发生(或存在、造出)得较晚；发生在…之后
OPP pre-date
Webster's Third New International Dictionary, Unabridged
post·date
I. \(ˈ) ̷ ̷+\ noun
Etymology: post- + date (n.)
: a subsequent date; especially : a date assigned to an event or affixed to a document that is later than its actual date
< a postdate on a bill of exchange >
II. transitive verb
Etymology: post- + date (v.)
1.
a. : to date (a document) as of a time subsequent to that of execution
< postdate a check >
b. : to assign (an event) to a date subsequent to that of actual occurrence
< postdated her birth >
2. : to follow (something) in time
< the words postdate the rest of the inscription — R.S.Rogers >