The Collaborative International Dictionary of English v.0.48:

Ket \Ket\ (k[e^]t), n. [Icel. kj["o]t flesh; akin to Sw.
   k["o]tt, Dan. kj["o]d.]
   Carrion; any filth. [Prov. Eng.] --Halliwell.
   [1913 Webster]