Ἐρασῖνος
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
Russian (Dvoretsky)
Ἐρᾰσῖνος: ὁ Эрасин (главная река Арголиды, протекающая через Лернейское болото) Aesch., Her.