Where does “quackgrass” come from?

quackgrass (English) comes from English quack, from English quacksalver, from Dutch quacksalver, from Middle Dutch quacsalven, from Middle Dutch salve, from Old Dutch salva, from Proto-West Germanic salbu, from Proto-Germanic salbō — fat, oil.

quackgrass (English): couch grass

Definitions

  1. couch grass

Ancestry of “quackgrass”, step by step

quackgrass traces back through two separate lines of ancestry.

via English quack

StepLanguageWordMeaning
1EnglishquackThe sound made by a duck; To make a noise like a...
2EnglishquacksalverOne falsely claiming to possess medical or other...
3Dutchquacksalvera hawker of salve
4Middle Dutchquacsalven
5Middle Dutchsalveointment, salve
6Old Dutchsalvasalve, ointment
7Proto-West Germanicsalbusalve, ointment
8Proto-Germanicsalbōsalve, ointment
9Proto-Indo-Europeansolp-éh₂
10Proto-Indo-Europeanselp-fat, oil

via English grass

StepLanguageWordMeaning
1EnglishgrassAny plant of the family Poaceae, characterized by...
2Middle EnglishgrasA grass; Any plant; especially a herbaceous one;...
3Old Englishgræsgrass
4Proto-West Germanicgrasgrass
5Proto-Germanicgrasągrass
6Proto-Indo-Europeanǵʰreh₁-to become green, grow; to grow; to green, to grow
Every word from Proto-Indo-European selp-
quackgrass — Etymology, Origin & Word History | Etymology Explorer