ETIOLOGY is a playable word

etiology Scrabble® Dictionary

noun
pl. etiologies
the study of the causes of diseases
80 Playable Words can be made from "ETIOLOGY"
   2-Letter Words (15 found)
   3-Letter Words (31 found)
   5-Letter Words (9 found)
   6-Letter Words (2 found)
   8-Letter Words (1 found)