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. [ 1913 Webster ]
2. To precede in time. [ 1913 Webster ]
3. To anticipate; to make before the true time. [ 1913 Webster ]
And antedate the bliss above. Pope. [ 1913 Webster ]
Who rather rose the day to antedate. Wordsworth. [ 1913 Webster ]