BACKFIT is a playable word

backfit Scrabble® Dictionary

verb
backfitted, backfitting, backfits
to retrofit
43 Playable Words can be made from "BACKFIT"
   2-Letter Words (12 found)
   3-Letter Words (21 found)
   4-Letter Words (8 found)
   5-Letter Words (1 found)
   7-Letter Words (1 found)