OVERPUMPING is a playable word

overpump Scrabble® Dictionary

verb
overpumped, overpumping, overpumps
to pump to excess
400 Playable Words can be made from "OVERPUMPING"
   2-Letter Words (26 found)
   3-Letter Words (88 found)
   8-Letter Words (6 found)
   9-Letter Words (1 found)
   11-Letter Words (1 found)