The Collaborative International Dictionary of English v.0.48:

Cabal \Ca*bal"\, v. i. [imp. & p. p. Caballed (-b[a^]ld"); p.
   pr. & vb. n. Caballing]. [Cf. F. cabaler.]
   To unite in a small party to promote private views and
   interests by intrigue; to intrigue; to plot.
   [1913 Webster]

         Caballing still against it with the great. --Dryden.
   [1913 Webster]