Where does “pigeonweed” come from?

pigeonweed (English) comes from English pigeon, from English business, from Middle English busines, from Old English bisiġnes, from Old English -nes, from Proto-West Germanic -nassī, from Proto-Germanic -inassuz, from Proto-West Germanic -ī — Creates collective nouns, which refer to groups...

Ancestry of “pigeonweed”, step by step

pigeonweed traces back through two separate lines of ancestry.

via English pigeon

StepLanguageWordMeaning
1EnglishpigeonOne of several birds of the family Columbidae,...
2EnglishbusinessA specific commercial enterprise or...
3Middle Englishbusines
4Old Englishbisiġnesbusiness, busyness
5Old English-nesUsed to form abstract nouns, usually from...
6Proto-West Germanic-nassīUsed to form abstract nouns, usually from...
7Proto-Germanic-inassuz-ness
8Proto-West Germanic-ness, -th
9Proto-Germanic-į̄-th
10Proto-Indo-European-íh₂
11Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

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 -h₂