REGRIND is a playable word

regrind Scrabble® Dictionary

verb
reground, regrinding, regrinds
74 Playable Words can be made from "REGRIND"
   2-Letter Words (9 found)
   3-Letter Words (23 found)
   4-Letter Words (19 found)
   5-Letter Words (13 found)
   6-Letter Words (8 found)
   7-Letter Words (2 found)