Where does “norreno” come from?

norreno (Portuguese) comes from Old Norse [[norrœnn]], [[norðrœnn]], from Proto-Germanic nurþrōnijaz, from Proto-Germanic nurþraz, from Proto-Indo-European *nér — below the surface, below.

norreno (Portuguese): Old Norse Germanic language spoken in Scandinavia before 1400 CE

Definitions

  1. Old Norse Germanic language spoken in Scandinavia before 1400 CE

Ancestry of “norreno”, step by step

StepLanguageWordMeaning
1Old Norse[[norrœnn]], [[norðrœnn]]—
2Proto-Germanicnurþrōnijaznorthern
3Proto-Germanicnurþraznorth, northern
4Proto-Indo-European*nérbelow the surface, below
Every word from Proto-Indo-European *nér →Every word from Proto-Germanic nurþraz →Every word from Proto-Germanic nurþrōnijaz →