οἰήιον

From LSJ

ἐπὶ τῷ μὴ κοινωνικῶς χρῆσθαι τοῖς εὐτυχήμασι → for not having used their success in a spirit of partnership

Source

English (Autenrieth)

tiller, then helm, rudder, Od. 9.483; usually pl., because a Homeric ship had two rudders or steering-oars, Od. 12.218. (See foll. cuts and No. 60.)

Middle Liddell

οἰήιον, ου, τό, [epic for οἴηξ, οἴαξ
a rudder, helm, Hom.