Where does “flȳs” come from?

flȳs (Old English) comes from Proto-West Germanic fleus, from Proto-Germanic fleusaz, from Proto-Indo-European plews-, from Proto-Indo-European plúsis — flea.

Ancestry of “flȳs”, step by step

StepLanguageWordMeaning
1Proto-West Germanicfleusfleece
2Proto-Germanicfleusaz—
3Proto-Indo-Europeanplews-to pluck, a feather, fleece; to pull out, pluck
4Proto-Indo-Europeanplúsisflea

Words derived from “flȳs”

Every word from Proto-Indo-European plúsis →Every word from Proto-Indo-European plews- →Every word from Proto-Germanic fleusaz →
flȳs — Etymology, Origin & Word History | Etymology Explorer