Where does “twēne” come from?

twēne (Old Dutch) comes from Proto-West Germanic twai-, from Proto-Germanic twai, from Proto-Indo-European dwóh₁ — two.

Ancestry of “twēne”, step by step

StepLanguageWordMeaning
1Proto-West Germanictwai-two
2Proto-Germanictwaitwo
3Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Germanic twai →Every word from Proto-West Germanic twai- →