Promachos — the name Promachus, that is, "the champion," also occurs as a surname of Heracles at Thebes…
Ancient Greek word, found 27 times in the texts on Socratos.
Homer, Iliad 14.476: ἔνθʼ Ἀκάμας Πρόμαχον Βοιώτιον οὔτασε δουρὶ
Plutarch, Titus Flamininus 10.5: … ἦν τῶν ἀγωνιζομένων, ἔσπευδον δὲ πάντες ἀναπηδῆσαι καὶ δεξιώσασθαι καὶ προσειπεῖν τὸν σωτῆρα τῆς Ἑλλάδος καὶ πρόμαχον.
Plutarch, Alexander 70.1: … οὺς Τῶν φίλων καὶ Τῶν ἡγεμόνων ἐπὶ δεῖπνον, ἀγῶνα προὔθηκε καὶ στέφανον ἀκρατοποσίας. ὁ μὲν οὖν πλεῖστον πιὼν Πρόμαχος ἄχρι χοῶν τεσσάρων προῆλθε· καὶ λαβὼν τὸ νικητήριον, στέφανον ταλαντιαῖον, ἡμέρας τρεῖς ἐπέζησε, Τῶν δὲ ἄλλων …
All forms of Πρόμαχος