Näcken

Etymology
From, from , perhaps from.

Proper noun

 * 1)  Nix; a water creature in human form who, among other things, lures people to drown in his river by his wonderful violin playing
 * 2)  A (Nordic) substitute for Neptunus, Poseidon, god of the sea.
 * °N, °W
 * °N, °W