兌
ダ, エイ, エツ, タイ, よろこ.ぶ, で
exchange
JLPT0 G13 S0 F5000
八
# split right and left +
兄
(extend the arms) → extend the arms in stripping away a captive's clothes and *exchange* them for prisoner's garb.
[Full Kanji Etymology List]