Source : Webster's Revised Unabridged Dictionary (1913)

Border \Bor"der\, v. i. [imp. & p. p. {Bordered}; p. pr. & vb.
   n. {Bordering}.]
   1. To touch at the edge or boundary; to be contiguous or
      adjacent; -- with on or upon as, Connecticut borders on
      Massachusetts.

   2. To approach; to come near to; to verge.

            Wit which borders upon profaneness deserves to be
            branded as folly.                     --Abp.
                                                  Tillotson.