Where does “bjørkemus” come from?

bjørkemus (Norwegian Nynorsk) comes from Norwegian Nynorsk bjørk, from Icelandic björk, from Old Norse bjǫrk, from Proto-Germanic birkijǭ, from Proto-Indo-European bʰerHǵos — birch.

bjørkemus (Norwegian Nynorsk): a northern birch mouse, "Sicista betulina"

Definitions

  1. a northern birch mouse, "Sicista betulina"

Ancestry of “bjørkemus”, step by step

bjørkemus traces back through two separate lines of ancestry.

via Norwegian Nynorsk bjørk

StepLanguageWordMeaning
1Norwegian Nynorskbjørka birch tree; birch
2Icelandicbjörka birch tree
3Old Norsebjǫrkbirch, birch tree
4Proto-Germanicbirkijǭbirch
5Proto-Indo-EuropeanbʰerHǵosbirch

via Norwegian Nynorsk mus

StepLanguageWordMeaning
1Norwegian Nynorskmusmouse; pussy; computer mouse
2Old Norsemús—
3Proto-Germanicmūsmouse
4Proto-Indo-Europeanmúh₂smouse
Every word from Proto-Indo-European bʰerHǵos →Every word from Proto-Germanic birkijǭ →Every word from Old Norse bjǫrk →