Where does “bloodweed” come from?

bloodweed (English) comes from English Blood, from Middle English blood, from Old English blōd, from Proto-West Germanic blōd, from Proto-Germanic blōþą, from Proto-Indo-European bʰleh₃-, from Proto-Indo-European bʰel-, from Proto-Indo-European bʰōl-.

Ancestry of “bloodweed”, step by step

bloodweed traces back through two separate lines of ancestry.

via English Blood

StepLanguageWordMeaning
1EnglishBloodA member of the Los Angeles gang The Bloods
2Middle Englishbloodblood
3Old Englishblōdblood
4Proto-West Germanicblōdblood
5Proto-Germanicblōþąblood
6Proto-Indo-Europeanbʰleh₃-bloom, flower
7Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
8Proto-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-Indo-European bʰleh₃-