RACHIAL is a playable word

rachis Scrabble® Dictionary

noun
pl. rachises or rachides
the spinal column
(adjective) rachial
66 Playable Words can be made from "RACHIAL"
   2-Letter Words (9 found)
   3-Letter Words (18 found)
   5-Letter Words (9 found)
   6-Letter Words (3 found)
   7-Letter Words (2 found)