Where does “bulstr” come from?

bulstr (Old Norse) comes from Proto-Germanic bulstraz, from Proto-Indo-European bʰelǵʰ-, from Proto-Indo-European bʰel-, from Proto-Indo-European bʰōl-.

Ancestry of “bulstr”, step by step

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

Words derived from “bulstr

Every word from Proto-Indo-European bʰōl-Every word from Proto-Indo-European bʰel-Every word from Proto-Indo-European bʰelǵʰ-