ECHINUS is a playable word

echinus Scrabble® Dictionary

noun
pl. echini
an echinoid
82 Playable Words can be made from "ECHINUS"
   2-Letter Words (14 found)
   3-Letter Words (28 found)
   5-Letter Words (9 found)
   6-Letter Words (5 found)
   7-Letter Words (1 found)