born of a noble sire; derived from those of noble birth
Ancient Greek word, found 18 times in the texts on Socratos.
Theocritus, Εἰδύλλια 18.53: ὡς ἐξ εὐπατριδᾶν εἰς εὐπατρίδας πάλιν ἔνθῃ.
Euripides, Iphigenia in Aulis 1077: τᾶς εὐπάτριδος γάμον
Sophocles, Electra 1080: διδύμαν ἑλοῦσʼ Ἐρινύν· τίς ἂν εὔπατρις ὧδε βλάστοι;