YESES is a playable word

yes Scrabble® Dictionary

verb
yessed, yessing, yesses or yeses
to give an affirmative reply to
11 Playable Words can be made from "YESES"
   2-Letter Words (2 found)
   3-Letter Words (4 found)
   4-Letter Words (4 found)
   5-Letter Words (1 found)