DEFRAG is a playable word

defrag Scrabble® Dictionary

verb
defragged, defragging, defrags
to eliminate fragmentation in a computer file
59 Playable Words can be made from "DEFRAG"
   2-Letter Words (12 found)
   3-Letter Words (21 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)