Where does “tjuefem” come from?
tjuefem (Norwegian Nynorsk) comes from Norwegian Nynorsk tjue, from Old Norse tjogu, from Old Norse tuttugu, from Proto-Germanic twai tigiwiz, from Proto-Germanic twai, from Proto-Indo-European dwóh₁ — two.
tjuefem (Norwegian Nynorsk): twenty-five
Ancestry of “tjuefem”, step by step