Where does “seventien” come from?

seventien (Middle Dutch) comes from Old Dutch sivontēn, from Proto-Germanic sebuntehun, from Proto-Germanic sebun, from Proto-Germanic sebunt, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “seventien”, step by step

StepLanguageWordMeaning
1Old Dutchsivontēn
2Proto-Germanicsebuntehunseventeen
3Proto-Germanicsebunseven
4Proto-Germanicsebunt
5Proto-Indo-Europeanseptḿ̥seven

Words derived from “seventien

Every word from Proto-Indo-European septḿ̥Every word from Proto-Germanic sebuntEvery word from Proto-Germanic sebun
seventien — Etymology, Origin & Word History | Etymology Explorer