SOLIDITY is a playable word

solidity Scrabble® Dictionary

noun
pl. solidities
the quality or state of being solid
110 Playable Words can be made from "SOLIDITY"
   2-Letter Words (15 found)
   3-Letter Words (26 found)
   6-Letter Words (5 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)