Where does “twēntig” come from?

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

Ancestry of “twēntig”, step by step

twēntig traces back through two separate lines of ancestry.

via Proto-Germanic twai tigiwiz

StepLanguageWordMeaning
1Proto-Germanictwai tigiwiztwenty
2Proto-Germanictwaitwo
3Proto-Indo-Europeandwóh₁two

via Proto-Germanic twaintigaz

StepLanguageWordMeaning
1Proto-Germanictwaintigaz—

Words derived from “twēntig”

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