FIFTIETHS is a playable word

fiftieth Scrabble® Dictionary

noun
pl. fiftieths
one of fifty equal parts
98 Playable Words can be made from "FIFTIETHS"
   2-Letter Words (14 found)
   3-Letter Words (28 found)
   6-Letter Words (5 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)