What is the etymology of Oceanus?

The term "Oceanus" originates from ancient Greek mythology, where "Okeanos" (Ὠκεανός) referred to a vast river encircling the earth, personified as a Titan. The name is derived from the Greek Word "okeanós," which is related to the Proto-Indo-European root *okʷē, meaning "to flow." In Latin, "Oceanus" adapted this concept, referring to the great body of water that surrounds the known world, and it is the source of the modern English Word "ocean."