MUDSILL is a playable word

mudsill Scrabble® Dictionary

noun
pl. mudsills
the lowest supporting timber of a structure
52 Playable Words can be made from "MUDSILL"
   2-Letter Words (8 found)
   3-Letter Words (19 found)
   4-Letter Words (19 found)
   5-Letter Words (5 found)
   7-Letter Words (1 found)