GRUFFEST is a playable word

gruff Scrabble® Dictionary

adjective
gruffer, gruffest
low and harsh in speech
verb
gruffed, gruffing, gruffs
to utter in a gruff voice
111 Playable Words can be made from "GRUFFEST"
   2-Letter Words (9 found)
   3-Letter Words (30 found)
   6-Letter Words (4 found)
   7-Letter Words (3 found)
   8-Letter Words (1 found)