The Collaborative International Dictionary of English v.0.48:

Corb \Corb\ (k[^o]rb), n. [L. corbis basket. Cf. Corbeil,
   Corp.]
   1. A basket used in coal mines, etc. see Corf.
      [1913 Webster]

   2. (Arch.) An ornament in a building; a corbel.
      [1913 Webster]