RUBBERING is a playable word

rubber Scrabble® Dictionary

verb
rubbered, rubbering, rubbers
to stretch one's neck in looking at something
128 Playable Words can be made from "RUBBERING"
   2-Letter Words (10 found)
   7-Letter Words (5 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)