antedated
an-te-dat-ed
verb
Occurred or existed at an earlier time than something else.
"His discovery antedated the official record by years."
verb
Assigned an earlier date to a document or official record.
"The contract was antedated to reflect the original agreement."
Thesaurus
Synonyms: forgo, precede, antecede, predate, forego, antedate, foredate