Proper noun
Okeanos
Oceanus
A commentary (1991, p.231) has noted of Homer's usage of the flat earth disc in the Iliad: "Okeanos. Source: Internet
A similar model is found in the Homeric account from the 8th century BC in which "Okeanos, the personified body of water surrounding the circular surface of the Earth, is the begetter of all life and possibly of all gods." Source: Internet