διθάλασσος G1337
dithálassos · dee-thal'-as-sos · Adjective
from δίς and θάλασσα; having two seas, i.e. a sound with a double outlet:--where two seas meet.
1 Occurrence in the King James Bible
Acts 27:41And falling into a place where two seas met, they ran the ship aground; and the forepart stuck fast, and remained unmoveable, but the hinder part was broken with the violence of the waves.