The Collaborative International Dictionary of English v.0.48:

Beard \Beard\ (b[=e]rd), v. t. [imp. & p. p. Bearded; p. pr. &
   vb. n. Bearding.]
   1. To take by the beard; to seize, pluck, or pull the beard
      of (a man), in anger or contempt.
      [1913 Webster]

   2. To oppose to the face; to set at defiance.
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            No admiral, bearded by these corrupt and dissolute
            minions of the palace, dared to do more than mutter
            something about a court martial.      --Macaulay.
      [1913 Webster]

   3. To deprive of the gills; -- used only of oysters and
      similar shellfish.
      [1913 Webster]