Where does “bombweed” come from?

bombweed (English) comes from English bomb, from French bombé, from Italian bomba, from Italian bombo, from Latin bombus, from Ancient Greek βόμβος — any deep, hollow sound, humming, buzzing,...

Ancestry of “bombweed”, step by step

bombweed traces back through two separate lines of ancestry.

via English bomb

StepLanguageWordMeaning
1EnglishbombAn explosive device used or intended as a weapon;...
2Frenchbombérounded, convex; past participle of bomber
3Italianbombabomb
4Italianbombobumblebee; buzzing
5LatinbombusA buzz or humming sound
6Ancient Greekβόμβοςany deep, hollow sound, humming, buzzing,...

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 Ancient Greek βόμβοςEvery word from Latin bombusEvery word from Italian bombo