Antedate

v. precede in time, predate; assign to a date prior to that of the actual occurrence

Verb
1. be earlier in time; go back further; "Stone tools precede bronze tools"
(synonym) predate, precede, forego, antecede
2. establish something as being earlier relative to something else
(synonym) predate, foredate
(hypernym) chronologize, chronologise

v. backdate, antedate

v. antedate, precede in time

(v. t.)
To precede in time.
  

(v. t.)
To date before the true time; to assign to an earlier date; thus, to antedate a deed or a bond is to give it a date anterior to the true time of its execution.
  

(v. t.)
To anticipate; to make before the true time.
  

(n.)
Prior date; a date antecedent to another which is the actual date.
  

(n.)
Anticipation.