Obs. Also bunken, bunkins. [Cf. bunk ‘nascaptha, an odoriferous root,’ given as Arabic in Johnson’s Pers.-Ar.-Eng. Dict., 1852; not in Freytag or Lane.]

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  A plant (or root) yielding a drug.

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1660.  Act 12 Chas. II., iv. Sched., Bunkins, Holliwortles, or pistolachia.

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1753.  Chambers, Cyd. Supp., Bunk, or Bunken, a word frequently occurring in the writings of the Arabian physicians … it was an aromatic root used in cardiac, stomachic, and carminative compositions.

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1775.  Ash, Bunk, Bunken (in medicine), the leucacantha.

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