Where does “[[fugl]], [[fogl]]” come from?

[[fugl]], [[fogl]] (Old Norse) comes from Proto-Germanic fuglaz, from Proto-Germanic fluglaz, from Proto-Germanic fleuganą, from Proto-Indo-European plewk-, from Proto-Indo-European plew- — to fly, flow, run.

Ancestry of “[[fugl]], [[fogl]]”, step by step

StepLanguageWordMeaning
1Proto-Germanicfuglazbird
2Proto-Germanicfluglaz—
3Proto-Germanicfleuganąto fly
4Proto-Indo-Europeanplewk-to fly, flow, run; to splash, to flap with hands
5Proto-Indo-Europeanplew-to fly, flow, run

Words derived from “[[fugl]], [[fogl]]”

Every word from Proto-Indo-European plew- →Every word from Proto-Indo-European plewk- →Every word from Proto-Germanic fleuganą →