CUPELLING is a playable word

cupel Scrabble® Dictionary

verb
cupeled, cupeling, cupels or cupelled, cupelling, cupels
to refine gold or silver in a cuplike vessel
135 Playable Words can be made from "CUPELLING"
   2-Letter Words (11 found)
   7-Letter Words (6 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)