BACKFITS is a playable word

backfit Scrabble® Dictionary

verb
backfitted, backfitting, backfits
to retrofit
127 Playable Words can be made from "BACKFITS"
   2-Letter Words (15 found)
   5-Letter Words (13 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)