Definition of hellweed in English:

hellweed

Pronunciation /ˈhɛlwiːd/

noun

  • Any of various plants considered to be noxious weeds; especially dodder (Cuscuta species), which is parasitic on other plants, and corn buttercup (Ranunculus arvensis), which has spiny seeds.

Origin

Early 16th century; earliest use found in Of Euyll Tonges. From hell + weed.