Where does “vīftēn” come from?

vīftēn (Old Dutch) comes from Proto-Germanic fimftehun, from Proto-Germanic tehun, from Proto-Indo-European déḱm̥t — ten.

Ancestry of “vīftēn”, step by step

StepLanguageWordMeaning
1Proto-Germanicfimftehunfifteen
2Proto-Germanictehunten
3Proto-Indo-Europeandéḱm̥tten

Words derived from “vīftēn”

Every word from Proto-Indo-European déḱm̥t →Every word from Proto-Germanic tehun →Every word from Proto-Germanic fimftehun →