Where does “skalldyr” come from?

skalldyr (Norwegian Bokmål) comes from Norwegian Bokmål dyr, from Old Norse dýrr, from Proto-Germanic *durz, from Proto-Indo-European dʰwṓr, from Proto-Indo-European dʰwer- — door.

skalldyr (Norwegian Bokmål): shellfish

Definitions

  1. shellfish

Ancestry of “skalldyr”, step by step

skalldyr traces back through two separate lines of ancestry.

via Norwegian Bokmål dyr

StepLanguageWordMeaning
1Norwegian Bokmåldyran animal; expensive; dear
2Old Norsedýrrdear, valuable
3Proto-Germanic*durz
4Proto-Indo-Europeandʰwṓrdoor
5Proto-Indo-Europeandʰwer-door

via Norwegian Bokmål skall

StepLanguageWordMeaning
1Norwegian Bokmålskallskin or peel; shell
Every word from Proto-Indo-European dʰwer-Every word from Proto-Indo-European dʰwṓrEvery word from Proto-Germanic *durz