Wine dark sea (Homer)

The wine-dark sea is a traditional English translation of οἶνοψ πόντος (oinops pontos), an epithet in Homer of uncertain meaning. A literal translation is "wine-face sea". The only other use of oinops in the works of Homer is for oxen, where it seems to describe a reddish color, which has given rise to various speculations about what it could mean about the blue seas.