Where does “twintich” come from?

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

Ancestry of “twintich”, step by step

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

Words derived from “twintich”

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