The Collaborative International Dictionary of English v.0.48:

Honewort \Hone"wort`\, n. (Bot.)
   An umbelliferous plant of the genus Sison (Sison Amomum);
   -- so called because used to cure a swelling called a hone.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Sison amomum
    n 1: a slender roadside herb of western Europe and Mediterranean
         areas that has foliage resembling parsley and has white
         flowers with aromatic seeds [syn: stone parsley, Sison
         amomum]