Where does “bei” come from?

bei (Middle English) comes from Old English bēag, from Proto-West Germanic *baug, from Proto-Germanic baugaz, from Proto-Indo-European bʰewgʰ- — to bend; curve, arch.

Ancestry of “bei”, step by step

bei traces back through two separate lines of ancestry.

via Old English bēag

StepLanguageWordMeaning
1Old Englishbēaga ring, bracelet, collar, garland, crown,...
2Proto-West Germanic*baugring, bracelet
3Proto-Germanicbaugaza bend; bow
4Proto-Indo-Europeanbʰewgʰ-to bend; curve, arch

via Old English bēah

StepLanguageWordMeaning
1Old Englishbēahring

Words derived from “bei

Every word from Proto-Indo-European bʰewgʰ-Every word from Proto-Germanic baugazEvery word from Proto-West Germanic *baug