MUDSILLS is a playable word

mudsill Scrabble® Dictionary

noun
pl. mudsills
the lowest supporting timber of a structure
67 Playable Words can be made from "MUDSILLS"
   2-Letter Words (8 found)
   3-Letter Words (21 found)
   5-Letter Words (10 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)