MOSSIEST is a playable word

mossy Scrabble® Dictionary

adjective
mossier, mossiest
covered with moss
118 Playable Words can be made from "MOSSIEST"
   2-Letter Words (17 found)
   3-Letter Words (27 found)
   6-Letter Words (10 found)
   7-Letter Words (3 found)
   8-Letter Words (1 found)