What is the meaning of Antedate?

To occur before an event or time; to exist further back in time.

To assign a date to a document or action earlier than the actual date.

To find earlier citational evidence for a term.

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

anticipation

inflection of antedatar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

inflection of antedatar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

Source: wiktionary.org