Where does “caseweed” come from?

caseweed (English) comes from English Case, from German Käse, from Middle High German kæse, from Old High German kāsi, from Proto-West Germanic kāsī, from Proto-Germanic kāsijaz, from Latin cāseus, from Proto-Indo-European kwat- — to ferment, become sour; to boil.

caseweed (English): The plant shepherd's purse

Definitions

  1. The plant shepherd's purse

Ancestry of “caseweed”, step by step

caseweed traces back through two separate lines of ancestry.

via English Case

StepLanguageWordMeaning
1EnglishCaseabstract feature of a noun phrase that determines...
2GermanKäsecheese; nonsense
3Middle High Germankæsecheese
4Old High Germankāsicheese
5Proto-West Germanickāsīcheese
6Proto-Germanickāsijazcheese
7Latincāseuscheese
8Proto-Indo-Europeankwat-to ferment, become sour; to boil

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 kwat-Every word from Latin cāseusEvery word from Proto-Germanic kāsijaz