Where does “mellomnorsk” come from?
mellomnorsk (Norwegian Bokmål) comes from Norwegian Bokmål norsk, from Middle Norwegian nornskr, from Old Norse norrǿnn, from Old Norse norðrǿnn, from Proto-Germanic nurþrōnijaz, from Proto-Germanic nurþraz, from Proto-Indo-European *nér.
mellomnorsk (Norwegian Bokmål): Middle Norwegian
Ancestry of “mellomnorsk”, step by step