Where does “tweien” come from?

tweien (Middle English) comes from Old English twēġen, from Proto-West Germanic twai-, from Proto-Germanic twai, from Proto-Indo-European dwóh₁ — two.

Ancestry of “tweien”, step by step

StepLanguageWordMeaning
1Old Englishtwēġentwo; twain
2Proto-West Germanictwai-two
3Proto-Germanictwaitwo
4Proto-Indo-Europeandwóh₁two

Words derived from “tweien”

Every word from Proto-Indo-European dwóh₁ →
tweien — Etymology, Origin & Word History | Etymology Explorer