OUTGAIN is a playable word

outgain Scrabble® Dictionary

verb
outgained, outgaining, outgains
to gain more than
97 Playable Words can be made from "OUTGAIN"
   2-Letter Words (18 found)
   5-Letter Words (10 found)
   6-Letter Words (4 found)
   7-Letter Words (2 found)