Where does “twō” come from?

twō (Proto-Germanic) comes from Proto-Germanic twai, from Proto-Indo-European dwóh₁ — two.

Ancestry of “twō”, step by step

StepLanguageWordMeaning
1Proto-Germanictwaitwo
2Proto-Indo-Europeandwóh₁two

Words derived from “twō”

Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Germanic twai →