CUSPIS is a playable word

cuspis Scrabble® Dictionary

noun
pl. cuspides
a cusp
31 Playable Words can be made from "CUSPIS"
   2-Letter Words (5 found)
   3-Letter Words (13 found)
   4-Letter Words (10 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)