θρεπτέον
From LSJ
Ὁ δὲ μὴ δυνάμενος κοινωνεῖν ἢ μηδὲν δεόμενος δι' αὐτάρκειαν οὐθὲν μέρος πόλεως, ὥστε ἢ θηρίον ἢ θεός → Whoever is incapable of associating, or has no need to because of self-sufficiency, is no part of a state; so he is either a beast or a god
German (Pape)
[Seite 1217] (s. τρέφω), zu ernähren, Plat. Tim. 19 a; Sp.; ἀπὸ τῶν εἰργασμένων θρεπτέον, muß man leben, Xen. Hipparch. 8, 8.