quassia amara


From The Collaborative International Dictionary of English v.0.48:

Quassia \Quas"si*a\, n. [NL. From the name of a negro, Quassy,
   or Quash, who prescribed this article as a specific.]
   The wood of several tropical American trees of the order
   Simarube[ae], as Quassia amara, Picr[ae]na excelsa, and
   Simaruba amara. It is intensely bitter, and is used in
   medicine and sometimes as a substitute for hops in making
   beer.
   [1913 Webster]
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