ἀδελφιδοῦς
From LSJ
ἀλλ' ἦν ἅπαντα τεταγμένα νόμων ἐπιταγαῖς → but all their acts were regulated by prescriptions set forth in laws
German (Pape)
[Seite 32] ὁ, Neffe, Bruder- od. Schwestersohn, 'Thuc. u. Folgde.
French (Bailly abrégé)
v. ἀδελφιδέος.