UPHEAPING is a playable word

upheap Scrabble® Dictionary

verb
upheaped, upheaping, upheaps
to heap up
144 Playable Words can be made from "UPHEAPING"
   2-Letter Words (21 found)
   5-Letter Words (13 found)
   6-Letter Words (10 found)
   7-Letter Words (3 found)
   9-Letter Words (1 found)