Where does “fimfzehan” come from?

fimfzehan (Old High German) comes from Proto-Germanic fimftehun, from Proto-Germanic tehun, from Proto-Indo-European déḱm̥t — ten.

Ancestry of “fimfzehan”, step by step

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

Words derived from “fimfzehan

Every word from Proto-Indo-European déḱm̥tEvery word from Proto-Germanic tehunEvery word from Proto-Germanic fimftehun