Passage 2.25.2
προελθοῦσι δὲ αὐτόθεν διαβάντων ποταμὸν χείμαρρον Χάραδρον καλούμενον ἔστιν Οἰνόη, τὸ ὄνομα ἔχουσα, ὡς Ἀργεῖοί φασιν, ἀπὸ Οἰνέως. Οἰνέα γὰρ τὸν βασιλεύσαντα ἐν Αἰτωλίᾳ λέγουσιν ὑπὸ τῶν Ἀγρίου παίδων ἐκβληθέντα τῆς ἀρχῆς παρὰ Διομήδην ἐς Ἄργος ἀφικέσθαι. ὁ δὲ τὰ μὲν ἄλλα ἐτιμώρησεν αὐτῷ στρατεύσας ἐς τὴν Καλυδωνίαν, παραμένειν δὲ οὐκ ἔφη οἱ δύνασθαι· συνακολουθεῖν δέ, εἰ βούλοιτο, ἐς Ἄργος ἐκεῖνον ἐκέλευεν. ἀφικόμενον δὲ τά τε ἄλλα ἐθεράπευεν, ὡς πατρὸς θεραπεύειν πατέρα εἰκὸς ἦν, καὶ ἀποθανόντα ἔθαψεν ἐνταῦθα. ἀπὸ τούτου μὲν Οἰνόη χωρίον ἐστὶν Ἀργείοις·
Advancing onward from here and having crossed over a mountain stream called Charadrus, one comes to Oinoe, which, according to the Argives, derives its name from Oeneus. For they say that Oeneus, who had ruled as king in Aetolia, was expelled from his kingdom by the sons of Agrios and came to Argos to Diomedes. Diomedes avenged him regarding most things, launching a campaign into Calydonia, but stated that he could not remain there himself. Instead, he told Oeneus that he could accompany him to Argos, if he wished. When Oeneus arrived there, Diomedes honoured him in every way, as was fitting for one to honour a father of one's own father, and upon Oeneus' death he buried him here. Because of this, there is among the Argives a place called Oinoe.