〈本分〉 one's moral duty [obligations]
〈正当性〉 (moral) justification
名分を明らかにする
名分を立てる
justify oneself [one's behavior, 【形式ばった表現】 one's conduct].
読み方 めいぶん
1
(=名義)justification; warrant; claim; legitimacy
2
(=分際)one's moral relation, one's duty (to one's lord or parents)