The Collaborative International Dictionary of English v.0.48:

Chamfer \Cham"fer\, n. [See Chamfron.]
   The surface formed by cutting away the arris, or angle,
   formed by two faces of a piece of timber, stone, etc.
   [1913 Webster]

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]

WordNet (r) 3.0 (2006):

chamfer
    n 1: two surfaces meeting at an angle different from 90 degrees
         [syn: bevel, cant, chamfer]
    v 1: cut a bevel on; shape to a bevel; "bevel the surface" [syn:
         bevel, chamfer]
    2: cut a furrow into a columns [syn: furrow, chamfer,
       chase]