vbl. sb. [f. as prec. + -ING1.] The action of marking with or assigning to an earlier date; anticipating.
1587. [See ANTEDATE v. 1.]
1619. Naunton, in Fortesc. Papers, 96. The late entring and antedating of the Order.
1706. trans. Dupins Eccl. Hist., II. V. 80. Henry II. had published an Edict in June, 1550. to reform Abuses, Frauds, Antedatings and Forgeries.
1879. Farrar, St. Paul, II. 587. That ante-dating of the second Advent.