Where does “polstar” come from?

polstar (Old High German) comes from Old Norse bólstr, from Proto-Germanic bulstraz, from Proto-Indo-European bʰelǵʰ-, from Proto-Indo-European bʰel-, from Proto-Indo-European bʰōl-.

Ancestry of “polstar”, step by step

StepLanguageWordMeaning
1Old Norsebólstrbolster, pillow
2Proto-Germanicbulstrazbolster, pillow, cushion
3Proto-Indo-Europeanbʰelǵʰ-to swell
4Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
5Proto-Indo-Europeanbʰōl-—

Words derived from “polstar”

Every word from Proto-Indo-European bʰōl- →Every word from Proto-Indo-European bʰel- →Every word from Proto-Indo-European bʰelǵʰ- →
polstar — Etymology, Origin & Word History | Etymology Explorer