TESTES is a playable word

testis Scrabble® Dictionary

noun
pl. testes
a male reproductive gland
26 Playable Words can be made from "TESTES"
   2-Letter Words (3 found)
   3-Letter Words (7 found)
   4-Letter Words (10 found)
   5-Letter Words (3 found)
   6-Letter Words (3 found)