SAYEST is a playable word

say Scrabble® Dictionary

verb
said, saying present sing. 2d person say or sayest or sayst 3d person says or saith
to utter
(adjective) sayable
70 Playable Words can be made from "SAYEST"
   2-Letter Words (10 found)
   3-Letter Words (24 found)
   5-Letter Words (12 found)
   6-Letter Words (2 found)