Where does “aurut” come from?

aurut (Norwegian Nynorsk) comes from Norwegian Nynorsk aur, from Old Norse aurr, from Proto-Germanic auraz, from Proto-Indo-European Huh₁-ró-s, from Proto-Indo-European -rós — Forms adjectives from Caland system roots.

Ancestry of “aurut”, step by step

StepLanguageWordMeaning
1Norwegian Nynorskaura mix between gravel, coarse sand
2Old Norseaurrmoist earth, wet clay, mud
3Proto-Germanicaurazwet sand or earth, mud; liquid, water, sea
4Proto-Indo-EuropeanHuh₁-ró-s—
5Proto-Indo-European-rósForms adjectives from Caland system roots
Every word from Proto-Indo-European -rós →Every word from Proto-Indo-European Huh₁-ró-s →Every word from Proto-Germanic auraz →