In the matter of the name's valid meaning, it is obvious to assume that it has its origins in the tree name 'gran' (spruce). This should designate a place where spruces grow. This is an unlikely explanation for a name with local origins in the Middle Ages and makes little sense. Even though many spruces currently grow in that vicinity, recent pollen studies show that spruce forests came surprisingly late to that stretch of land. They were not present before the 13th to 14th centuries and it took several hundred years after that for spruce forest to proliferate in the Ner-Vefsn and Majavatnet settlements. Spruce trees were not likely characteristic of the Grane area in the Middle Ages.