buckwheat

 
Pronunciation: /ˈbʌkwiːt/

noun

  • an Asian plant of the dock family, producing starchy seeds that are used for fodder and also milled into flour which is widely used in the US.
    • Fagopyrum esculentum, family Polygonaceae

Origin:

mid 16th century: from Middle Dutch boecweite 'beech wheat', its grains being shaped like beechmast