διαδικαιόω
From LSJ
Ἴσος ἴσθι πᾶσι, κἂν ὑπερέχῃς τῷ βίῳ → Quamvis superior sorte, da te aequum omnibus → Sei allen gleich, auch wenn du reicher bist
English (LSJ)
A justify an action, Th.4.106; defend as matter of right, ὑπέρ τινος, D.C.39.60; defend a person's right, τὰ τοῦ Καίσαρος Id.40.62.