XYSTI is a playable word

xystus Scrabble® Dictionary

noun
pl. xysti
a roofed area where athletes trained in ancient Greece
15 Playable Words can be made from "XYSTI"
   2-Letter Words (5 found)
   3-Letter Words (7 found)
   4-Letter Words (1 found)
   5-Letter Words (2 found)