[Origin unknown.

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  The conjecture of Hempl (Publ. Mod. Lang. Assoc. America, XIV. 455) that kipper is here a variant of pepper, pickle, in sense ‘pungent,’ does not seem justified.]

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  1.  = EARTH-NUT 1.

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1597.  Gerarde, Herbal, II. ccccxv. 905. Earth Nut, Earth Chestnut, or Kipper Nut.

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1611.  Cotgr., Noix chastaigne, the earth nut, Kipper nut, earth Chestnut.

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1722.  Quincy, Lex. Physico-Med. (ed. 2), 348. The Earth-nut, Kipper-nut or Pig-nut.

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1846.  Sowerby, Brit. Bot. (ed. 3).

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  2.  The tuber of the Heath-pea: = EARTH-NUT 2.

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1863.  Prior, Pop. Names Brit. Plants.

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1879.  Britten & Holland, Plant-n.

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