Source : Webster's Revised Unabridged Dictionary (1913)

Kail \Kail\, n.
   1. (Bot.) A kind of headless cabbage. Same as {Kale}, 1.

   2. Any cabbage, greens, or vegetables. [OE. or Scot.]

   3. A broth made with kail or other vegetables; hence, any
      broth; also, a dinner. [Scot.]

   {Kail yard}, a kitchen garden. [Scot.]

Source : WordNet®

kail
     n 1: a hardy cabbage with coarse curly leaves that do not form a
          head [syn: {kale}, {cole}, {borecole}, {colewort}, {Brassica
          oleracea acephala}]
     2: coarse curly-leafed cabbage [syn: {kale}, {cole}]