Source : Webster's Revised Unabridged Dictionary (1913)

Waylay \Way"lay`\ (?; 277), v. t. [imp. & p. p. {Waylaid}; p.
   pr. & vb. n. {Waylaying}.] [Way + lay.]
   To lie in wait for; to meet or encounter in the way;
   especially, to watch for the passing of, with a view to
   seize, rob, or slay; to beset in ambush.

         Falstaff, Bardolph, Peto, and Gadshill shall rob those
         men that we have already waylaid.        --Shak.

         She often contrived to waylay him in his walks. --Sir
                                                  W. Scott.

Source : WordNet®

waylay
     v : wait in hiding to attack [syn: {ambush}, {scupper}, {bushwhack},
          {lurk}, {ambuscade}, {lie in wait}]
     [also: {waylaid}]