διθάλασσος
From LSJ
Menander, Monostichoi, 483
English (LSJ)
Att. διθάλαττος [θᾰ], ον,
A divided into two seas, of the Euxine, Str.2.5.22, cf. D.P.156; of the Atlantic, Str.1.1.8. II between two seas, where two seas meet, as is often the case off a headland, Act.Ap.27.41; βραχέα καὶ διθάλαττα shallows and meetings of currents, in the Syrtes, D.Chr.5.9.