vatnsorka
Vatnsorka is a term found in Icelandic folklore referring to a water spirit or guardian of water sources such as springs, wells, and rivers. The exact nature of a vatnsorka varies by region and storyteller; most accounts describe a being connected to a particular source, sometimes dwelling in the water, sometimes as a mist or shapeshifter. The etymology combines vatn (water) with a second element of uncertain origin, and the term is attested mainly in rural and folkloric contexts rather than formal hydrology.
Role in folklore: Vatnsorkar are thought to safeguard the purity and flow of their source; they may
Regional traditions: Stories are most common in western and northern Iceland, with variations on how to identify
See also: Water spirit, Naiads, Kelpie, Folklore of Iceland. References: Icelandic folklore collections and ethnographic studies