δωδεκέτης
From LSJ
τὸ γὰρ εὖ πράττειν παρὰ τὴν ἀξίαν ἀφορμὴ τοῦ κακῶς φρονεῖν τοῖς ἀνοήτοις γίγνεται → undeserved success engenders folly in unbalanced minds
English (LSJ)
ου, or δωδεκ-ετής, οῦ, ὁ,
A twelve years old, Call.Epigr.21 (δωδεκένη Meineke), Plu.Aem.35:—in form δωδεχέτης, IG4.51 (Aegina), Annuario 4/5.467 (Halic., iv B.C.):—fem. δωδεκ-έτις, ιδος, AP11.70 (Leon.).