DYARCHAL is a playable word

dyarchy Scrabble® Dictionary

noun
pl. dyarchies
diarchy
(adjective) dyarchal, dyarchic
85 Playable Words can be made from "DYARCHAL"
   2-Letter Words (10 found)
   3-Letter Words (26 found)
   6-Letter Words (3 found)
   7-Letter Words (1 found)
   8-Letter Words (2 found)