BACKDATE is a playable word

backdate Scrabble® Dictionary

verb
backdated, backdating, backdates
to predate
84 Playable Words can be made from "BACKDATE"
   2-Letter Words (14 found)
   3-Letter Words (29 found)
   5-Letter Words (9 found)
   6-Letter Words (3 found)
   8-Letter Words (1 found)