What is "oenus"

Oenus was a legendary king of the Britons as accounted by Geoffrey of Monmouth. He was preceded by Cap and succeeded by Sisillius III.

Oenus ( Greek: : Eth. ), an ancient town in Laconia, Greece, celebrated for its wine, from which the river Oenus, a tributary of the Eurotas, appears to have derived its name. From its being described by Athenaeus as near Pitane, one of the divisions of Sparta, it was probably situated near the junction of the Oenus and the Eurotas. ( Steph. B. s. v.; Athen. i. p. 31.)

The Oenus ( Ancient Greek: , - Oinountas, also called Kelefina) is a river in the Peloponnese peninsula, southern Greece. It rises in the watershed of Mt. Parnon, and, after flowing in a general southwesterly direction, falls into the Eurotas, at the distance of little more than a mile from Sparta. ( Polyb. ii. 65, 66; Liv. xxxiv. 28.) The principal tributary of the Oenus was the Gorgylus (Greek: Γόργυλος, Polyb. ii. 66), probably the river of Vrestená. (Leake, Peloponnesiaca, p. 347.) The municipal unit Oinountas, part of the municipality Sparta, was named after the river Oenus.