ἐπέξοδος
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
English (LSJ)
ἡ,
A march out against an enemy, ἐ. ποιήσασθαι πρός τινα Th.5.8; sortie, Aen. Tact. 23.1 (pl.), D.C.39.4. II attack for the purpose of revenge, Nic. Dam.130.17 J., Ph.2.314; for punishment, Id.1.283.
German (Pape)
[Seite 916] ἡ, das Ausrücken gegen den Feind, Thuc. 5, 8 u. Sp., wie D. Cass. 39, 4.