antedate
Antedate is a verb meaning to assign a date earlier than the actual date of an event or document, or to precede in time. In archival, administrative, legal, and historical contexts, the term is used to indicate that something is earlier in time than a reference point. The action can be descriptive when recording history, or could be deliberate to reflect a previous agreement, event, or occurrence.
Etymology: The word derives from Latin ante- "before" and data "given" or "date." The form antedated is
Usage notes: Antedating a document is distinct from postdating or backdating. It can be neutral when documenting
Examples: A contract signed on March 5 but antedated to February 28 to reflect an earlier effective