earthnut
nounUK /ˈɜːθ.nʌt/ · US /ˈɝθ.nʌt/
Etymology Inherited from Middle English erthenote, from Old English eorþhnutu, from Proto-Germanic *erþōhnuts; equivalent to earth + nut.
› Any of various roots, tubers, or pods that…
1
A tuber belonging to the species Conopodium majus (syns. Bunium flexuosum, Conopodium denudatum), Bunium bulbocastanum (syn. Carum bulbocastanum), or Apios americana (syn. Apios tuberosa).
2
A dwarf ginseng: Panax trifolius.
3
Synonym of peanut (Arachis hypogaea).
4
An underground tuber of a plant of the genus Tuber.