θρεπτήρ
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English (LSJ)
ῆρος, ὁ,
A feeder, rearer, of a parent or foster-parent, IG3.1401, JRS2.91 (Antioch in Pisidia), AP12.137 (Mel.): pl., IG14.1722: as Adj., θ. ἀγοστός Nonn. D.3.387.
German (Pape)
[Seite 1217] ῆρος, ὁ, Ernährer; Mel. 72 (XII, 137); Nonn. 3, 385.