SURPLUSSING is a playable word

surplus Scrabble® Dictionary

verb
surplused, surplusing, surpluses or surplussed, surplussing, surplusses
to treat as being in excess of what is needed
226 Playable Words can be made from "SURPLUSSING"
   2-Letter Words (10 found)
   8-Letter Words (4 found)
   10-Letter Words (1 found)
   11-Letter Words (1 found)