損
ソン, そこ.なう, そこな.う, そこ.なう, そこ.ねる, そこ.ねる
damage, loss, disadvantage, hurt, injure
JLPT2 G5 S13 F807
As per 員# (round) + 手 hand/action indicator → make a round hole in damaging an object → *loss*; *harm*; *damage*; *ruin* → *decrease*; *sink*; *hollow*; *humble oneself*; *fail*; *miss*.
[Full Kanji Etymology List]