Where does “pinweed” come from?

pinweed (English) comes from English PIN, from Middle English pinne, from Old English pinn, from Proto-Germanic pinnaz, from Proto-Indo-European bend- — point, pin; peg, tip, protruding point, edge;...

pinweed (English): Any plant of the genus Lechea, low North American...

Definitions

  1. Any plant of the genus Lechea, low North American...

Ancestry of “pinweed”, step by step

pinweed traces back through two separate lines of ancestry.

via English PIN

StepLanguageWordMeaning
1EnglishPINAcronym of personal identification number;...
2Middle Englishpinne—
3Old Englishpinnpin; peg; an instrument of writing; pen
4Proto-Germanicpinnazpin
5Proto-Indo-Europeanbend-point, pin; peg, tip, protruding point, edge;...

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 bend- →Every word from Proto-Germanic pinnaz →Every word from Old English pinn →