θρεπτέος
From LSJ
Ξενίας ἀεὶ φρόντιζε, μὴ καθυστέρει → Cura hospitalis esse nec in hoc sis piger → Sei stets auf Gastfreundschaft bedacht und säume nicht
English (LSJ)
α, ον, (τρέφω)
A to be fed, nurtured, metaph., γυμναστικῇ Pl.R.403c. II θρεπτέον one must feed, keep, Id.Ti.19a, X.Lac.9.5. 2 (from Pass.) ἢ ἐργαστέον ἢ ἀπὸ τῶν εἰργασμένων θρεπτέον one must live on what has been earned, Id.Eq.Mag.8.8.