Where does “crampweed” come from?

crampweed (English) comes from English cramp, from Middle English crampe, from Old French crampe, from Frankish krampa, from Proto-Germanic krampō, from Proto-Germanic krampô, from Proto-Indo-European grem-, from Proto-Indo-European ger- — to turn, bend, twist, wind; to tie, bind...

Ancestry of “crampweed”, step by step

crampweed traces back through two separate lines of ancestry.

via English cramp

StepLanguageWordMeaning
1EnglishcrampA painful contraction of a muscle which cannot be...
2Middle Englishcrampe
3Old Frenchcrampecramp
4Frankishkrampacramp
5Proto-Germanickrampōcramp; clasp
6Proto-Germanickrampôcramp
7Proto-Indo-Europeangrem-to bind together, unite; lap, pile, heap
8Proto-Indo-Europeanger-to turn, bend, twist, wind; to tie, bind...

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 ger-Every word from Proto-Indo-European grem-Every word from Proto-Germanic krampô