Source : Webster's Revised Unabridged Dictionary (1913)

Ilk \Ilk\, a. [Scot. ilk, OE. ilke the same, AS. ilca. Cf.
   {Each}.]
   Same; each; every. [Archaic] --Spenser.

   {Of that ilk}, denoting that a person's surname and the title
      of his estate are the same; as, Grant of that ilk, i.e.,
      Grant of Grant. --Jamieson.

Source : WordNet®

ilk
     n : a kind of person; "I don't like people of his ilk"