Where does “fiughertān” come from?

fiughertān (Old Swedish) comes from Old Norse fjugurtán, from Old Norse fjórtán, from Proto-Germanic fedurtehun, from Proto-Germanic fedwōr, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

Ancestry of “fiughertān”, step by step

StepLanguageWordMeaning
1Old Norsefjugurtán—
2Old Norsefjórtánfourteen
3Proto-Germanicfedurtehunfourteen
4Proto-Germanicfedwōrfour
5Proto-Indo-Europeankʷetwóresfour
6Proto-Indo-Europeankʷe-and

Words derived from “fiughertān”

Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Germanic fedwōr →