groundnut means A climbing vine, Apios americana, of eastern North America, having fragrant brownish flowers and small edible tubers. Lexicurio rates it Distinctive — a strength score of 68 out of 100.
Etymology
From ground + nut. Compare Icelandic jarðhneta, German Erdnuss (both cognate with earthnut) and Hungarian földimogyoró.
noun
- A climbing vine, Apios americana, of eastern North America, having fragrant brownish flowers and small edible tubers.
- Any similar plant having underground tubers.
- The nutlike tuber of such a plant, especially peanuts.
- A plant which bears its nutlike seeds underground, such as a peanut (Arachis hypogaea) or a Bambara groundnut (Vigna subterranea).