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From Latin polygonium, from Ancient Greek πολύγονον (polúgonon).


polygony (plural polygonies)

  1. Any plant of the genus Polygonum, especially knotgrass.
    • 1590, Edmund Spenser, The Faerie Queene, III.v:
      There, whether it diuine Tobacco were, / Or Panachæa, or Polygony, / She found, and brought it to her patient deare [...].