EKISTICS is a playable word

ekistics Scrabble® Dictionary

plural noun
a science dealing with human habitats
(adjective) ekistic
91 Playable Words can be made from "EKISTICS"
   2-Letter Words (8 found)
   3-Letter Words (21 found)
   6-Letter Words (5 found)
   7-Letter Words (5 found)
   8-Letter Words (2 found)