Where does “*flaugh” come from?

*flaugh (Middle English) comes from Old Norse flaga, from Proto-Germanic flagō, from Proto-Indo-European plāk-, from Proto-Indo-European pele- — broad, flat, plain; broad, wide, flat.

Ancestry of “*flaugh”, step by step

*flaugh traces back through 3 separate lines of ancestry.

via Old Norse flaga

StepLanguageWordMeaning
1Old Norseflagaa flag or slab of stone, flake; stone slab
2Proto-Germanicflagōa layer of soil
3Proto-Indo-Europeanplāk-broad, flat; smooth, flat; flat, broad, plain
4Proto-Indo-Europeanpele-broad, flat, plain; broad, wide, flat

via Middle Low German vlāge

StepLanguageWordMeaning
1Middle Low Germanvlāge—

via Middle Dutch vlāghe

StepLanguageWordMeaning
1Middle Dutchvlāghe—
Every word from Proto-Indo-European pele- →Every word from Proto-Indo-European plāk- →Every word from Proto-Germanic flagō →