Definitions for "Antedate"
Prior date; a date antecedent to another which is the actual date.
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.
To precede in time.
Keywords:  anticipate, true, time
Anticipation.
To anticipate; to make before the true time.