SCRUMMING is a playable word

scrum Scrabble® Dictionary

verb
scrummed, scrumming, scrums
to engage in a scrummage (a formation around the ball in rugby)
137 Playable Words can be made from "SCRUMMING"
   2-Letter Words (11 found)
   7-Letter Words (4 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)