An″te‐date′ (�), v. t. [imp. & p. p.Antedated; p. pr. & vb. n.Antedating.] 1. 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.
2. To precede in time.
3. To anticipate; to make before the true time.
And antedate the bliss above.
Pope.
Who rather rose the day to antedate.
Wordsworth.