In a poem entitled "Etymology" from the collection Time and Materials, Robert Hass, immediately after presenting us with images of a waterfall, and rapids of flowing water, gives us this transcendentally beautiful erotic image:
xxxAnd what to say of her wetness? The Anglo-Saxons
xxxHad a name for it. They called it silm.
xxxThey were navigators. It was also
xxxTheir word for the look of moonlight on the sea.