The Collaborative International Dictionary of English v.0.48:

Cade \Cade\, n. [F. & Pr.; LL. cada.]
   A species of juniper (Juniperus Oxycedrus) of Mediterranean
   countries.
   [1913 Webster]

   Oil of cade, a thick, black, tarry liquid, obtained by
      destructive distillation of the inner wood of the cade. It
      is used as a local application in skin diseases.
      [1913 Webster]