earthnut
noun
1
: any of various roots, tubers, or subterranean pods: such as
a
: the tuber of a common southern European plant (Conopodium denudatum) of the family Umbelliferae having the flavor of roasted chestnuts
b
: yellow nutsedge
c
: peanut
d
or less commonly earthnut pea : the root of the heath pea
2
: any plant producing earthnuts
3
: truffle
Word History
Etymology
Middle English erthenote, from Old English eorthnutu, from eorth- (from eorthe earth) + nutu, hnutu nut
First Known Use
14th century, in the meaning defined at sense 1