INTERREX is a playable word

interrex Scrabble® Dictionary

noun
pl. interreges
a type of sovereign
70 Playable Words can be made from "INTERREX"
   2-Letter Words (11 found)
   3-Letter Words (18 found)
   4-Letter Words (16 found)
   5-Letter Words (13 found)
   6-Letter Words (8 found)
   7-Letter Words (3 found)
   8-Letter Words (1 found)