Where does “Tvilling” come from?

Tvilling (Norwegian) comes from Danish tvilling, from Old Danish twinling.

Ancestry of “Tvilling”, step by step

StepLanguageWordMeaning
1Danishtvillingtwin
2Old Danishtwinling
Every word from Old Danish twinlingEvery word from Danish tvilling
Tvilling — Etymology, Origin & Word History | Etymology Explorer