ἀγαθοὶ δὲ ἐγένοντο διὰ τὸ φῦναι ἐξ ἀγαθῶν → they were virtuous because they were sprung from virtuous men, virtuous they were because they were sprung from men of virtue
prytănes: or prytănis, is, m., = πρύτανις>,
I one of the chief magistrates in some of the Grecian States, Sen. Tranq. 4, 5; acc. prytanin, Liv. 42, 45, 4.