postdate
/ˌpoʊstˈdeɪt/
verb
postdates;
postdated;
postdating
postdates;
postdated;
postdating
Britannica Dictionary definition of POSTDATE
[+ object]
1
:
to give (something) a date that is later than the actual or current date
—
opposite antedate
2
:
to exist, happen, or be made at a later time than (something)
—
opposite antedate, predate