Where does “zwirn” come from?

zwirn (Middle High German) comes from Old High German zwirn, from Proto-West Germanic twiʀn, from Proto-Germanic twiznaz, from Proto-Indo-European dwisnós, from Proto-Indo-European dwóh₁ — two.

Ancestry of “zwirn”, step by step

StepLanguageWordMeaning
1Old High Germanzwirn
2Proto-West Germanictwiʀntwine, double thread
3Proto-Germanictwiznazthread, twine
4Proto-Indo-Europeandwisnósdouble
5Proto-Indo-Europeandwóh₁two

Words derived from “zwirn

Every word from Proto-Indo-European dwóh₁Every word from Proto-Indo-European dwisnósEvery word from Proto-Germanic twiznaz