τρισκαιδεκέτης
From LSJ
ἐν δὲ δικαιοσύνῃ συλλήβδην πᾶσ' ἀρετὴ ἔνι → in justice is all virtue found in sum, in justice is every virtue there is, in justice every virtue is brought together, justice contains in itself all the virtues
Greek (Liddell-Scott)
τρισκαιδεκέτης: -ου, ὁ, ὁ ἔχων ἡλικίαν δεκατριῶν ἐτῶν, Λυσί. 116. 28.
French (Bailly abrégé)
c. τρισκαιδεκαέτης.