Learn how to say Buckwheat correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word buckwheat:
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
mid 16th century: from Middle Dutch boecweite ‘beech wheat’, its grains being shaped like beechmast