GRUFFER 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
26 Playable Words can be made from "GRUFFER"
   2-Letter Words (4 found)
   3-Letter Words (12 found)
   4-Letter Words (6 found)
   5-Letter Words (3 found)
   7-Letter Words (1 found)