arachis
noun
ar·a·chis
ˈa-rə-kəs,
ˈer-ə-
1
capitalized : a small genus of mostly Brazilian herbs (family Leguminosae) with yellow flowers and pods that ripen underground see peanut
2
plural -es : a plant of the genus Arachis
Word History
Etymology
borrowed from New Latin (Linnaeus), probably derived from the presumed base of Latin arachidna, arachidnē, the geocarpic legume Lathyrus amphicarpos, borrowed from Greek aráchidna, of non-Indo-European origin