Where does “-fos” come from?

-fos (Westrobothnian) comes from Old Norse fúss, from Proto-Germanic funsaz, from Proto-Indo-European pn̥tstós, from Proto-Indo-European pent- — to pass; path.

Ancestry of “-fos”, step by step

StepLanguageWordMeaning
1Old Norsefússwilling
2Proto-Germanicfunsazready, willing
3Proto-Indo-Europeanpn̥tstós—
4Proto-Indo-Europeanpent-to pass; path

Words derived from “-fos”

Every word from Proto-Indo-European pent- →Every word from Proto-Indo-European pn̥tstós →Every word from Proto-Germanic funsaz →