ἐπίγυιον
From LSJ
χελῶναι μακάριαι τοῦ δέρματος → you tortoises are fortunate in your skin, you blessed turtles with your shell
English (LSJ)
or ἐπίγῡον, τό, A stern-cable, Ar.Fr.80, cf. 426: written -γυιον in Aristid.Or.23(42).17, Zonar., -γυον in IG22.1611.255-8 (iv B.C.), Plb.3.46.3, Harp.s.v. ἐπίγυον (v.l. ἐπόγυιον): scanned in Ar.
Greek (Liddell-Scott)
ἐπίγυιον: ἢ ἐπίγυον. ἴδε ἐν λ. ἐπίγειος.