The Collaborative International Dictionary of English v.0.48:

King \King\, v. i. [imp. & p. p. Kinged; p. pr. & vb. n.
   Kinging). ]
   To supply with a king; to make a king of; to raise to
   royalty. [R.] --Shak.
   [1913 Webster]

         Those traitorous captains of Israel who kinged
         themselves by slaying their masters and reigning in
         their stead.                             --South.
   [1913 Webster]