Paper presented (with the subtitle "Approaching Norse vernacular categories of being") at the international conference of the Old Norse Folklorists Network, Sagas, legends and trolls : the supernatural from early modern back to Old Norse tradition, held 12th-14th June 2014 in Tartu, Estonia, and also (with the present subtitle) at the Second International MEWSC Worksho, Indigenous ontologies : reassessing human and non-human relations, held 29th-30th July 2014, Tartu, Estonia.