Where does “fyse” come from?

fyse (Middle English) comes from Old Norse fýsa, from Proto-Germanic funsijaną, from Proto-Indo-European pent- — to pass; path.

Ancestry of “fyse”, step by step

StepLanguageWordMeaning
1Old Norsefýsa—
2Proto-Germanicfunsijanąto predispose; make favourable; make ready
3Proto-Indo-Europeanpent-to pass; path
Every word from Proto-Indo-European pent- →Every word from Proto-Germanic funsijaną →Every word from Old Norse fýsa →