sth is backdated
1backdate — back|date [ˌbækˈdeıt US ˈbækdeıt] v [T] 1.) to make something have its effect from an earlier date backdate sth from/to sth ▪ The pay increase will be backdated to January. 2.) AmE to write an earlier date on a document or cheque than when it was …
2backdate — verb (T) to make something have its effect from an earlier date: backdate sth from/to: The pay increase agreed in June will be backdated to January. compare antedate, postdate …
