Where does “bullweed” come from?

bullweed (English) comes from English Bole, from English Bolle, from German bolle, from Middle High German bolle, from Old High German bolla, from Proto-West Germanic bollā, from Proto-Germanic bullǭ, from Proto-Indo-European bʰel-.

bullweed (English): knapweed

Definitions

  1. knapweed

Ancestry of “bullweed”, step by step

bullweed traces back through two separate lines of ancestry.

via English Bole

StepLanguageWordMeaning
1EnglishBoleA Chadic language native to Nigeria
2EnglishBolle
3Germanbollea thickish, roundish object
4Middle High Germanbollebud
5Old High Germanbollaround vessel, bowl
6Proto-West Germanicbollāball; bowl
7Proto-Germanicbullǭround object, ball; round vessel, bowl
8Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
9Proto-Indo-Europeanbʰōl-

via English weed

StepLanguageWordMeaning
1EnglishweedAny plant regarded as unwanted at the place...
2Middle Englishweed
3Old Englishwēodweed
4Proto-West Germanic*weudweed (unwanted plant)
Every word from Proto-Indo-European bʰōl-Every word from Proto-Indo-European bʰel-Every word from Proto-Germanic bullǭ