I. ˈan-ti-ˌdāt noun
Date: 15th century
: a date assigned to an event or document earlier than the actual date of the event or document
II. ˈan-ti-ˌdāt, ˌan-ti-ˈ transitive verb
Date: 1572
1.
a. : to date as of a time prior to that of execution
b. : to assign to a date prior to that of actual occurrence
2. archaic : anticipate
3. : to precede in time