COZIEST is a playable word

cozy Scrabble® Dictionary

adjective
cozier, coziest
snug and comfortable
(adverb) cozily
verb
cozied, cozying, cozies
to attempt to get on friendly terms
72 Playable Words can be made from "COZIEST"
   2-Letter Words (12 found)
   3-Letter Words (25 found)
   5-Letter Words (11 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)