ILLUVIUM is a playable word

illuvium Scrabble® Dictionary

noun
pl. illuviums or illuvia
a type of material accumulated in soil
(adjective) illuvial
19 Playable Words can be made from "ILLUVIUM"
   2-Letter Words (4 found)
   3-Letter Words (7 found)
   4-Letter Words (4 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)
   8-Letter Words (1 found)