The Collaborative International Dictionary of English v.0.48:

Chamfer \Cham"fer\, v. t. [imp. & p. p. Chamfered; p. pr. &
   vb. n. Chamfering. ]
   [1913 Webster]
   1. (Carp.) To cut a furrow in, as in a column; to groove; to
      channel; to flute.
      [1913 Webster]

   2. To make a chamfer on.
      [1913 Webster]