Note 98 — SECTION II. PHYSICAL GEOGRAPHY OF ICELAND.
Reading edition
The word is written Nikuðr and Nikuðs, Hnikar and Nikarr: originally a title of Odin, it has survived in the Icel. Nykr, a nick or water-goblin in the shape of a grey sea-horse, with inverted hoofs; and in the German Nix, a nymph or water-fairy.