TREATER is a playable word

treater Scrabble® Dictionary

noun
pl. treaters
one that treats
54 Playable Words can be made from "TREATER"
   2-Letter Words (8 found)
   3-Letter Words (19 found)
   4-Letter Words (11 found)
   5-Letter Words (8 found)
   6-Letter Words (6 found)
   7-Letter Words (2 found)