COOPERED is a playable word

cooper Scrabble® Dictionary

verb
coopered, coopering, coopers
to make or mend barrels
118 Playable Words can be made from "COOPERED"
   2-Letter Words (11 found)
   3-Letter Words (32 found)
   6-Letter Words (5 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)