F / Flēvo
noun

Flēvo

gen. Flēvōnis · gender masculine · decl. 3rd
the Zuyder Zee; a lake at the mouth of the Rhine
the Zuyder Zee, a lake at the mouth of the Rhine, Mela, 3, 2 fin.; called also Flēvom (sc. ostium), Plin. 4, 15, 29, § 101.