Source : Webster's Revised Unabridged Dictionary (1913)

Cowage \Cow"age\ (kou"[asl]j), n. (Bot.)
   See {Cowhage}.

Source : WordNet®

cowage
     n 1: pods of the cowage plant or the stinging hairs covering
          them; used as a vermifuge when mixed with e.g. honey
     2: annual semi-woody vine of Asia having long clusters of
        purplish flowers and densely hairy pods; cultivated in
        southern United States for green manure and grazing [syn:
        {velvet bean}, {Bengal bean}, {Benghal bean}, {Florida
        bean}, {Mucuna pruriens utilis}, {Mucuna deeringiana}, {Mucuna
        aterrima}, {Stizolobium deeringiana}]