The Collaborative International Dictionary of English v.0.48:

Plot \Plot\, v. t. [imp. & p. p. Plotted; p. pr. & vb. n.
   Plotting.]
   To make a plot, map, pr plan, of; to mark the position of on
   a plan; to delineate.
   [1913 Webster]

         This treatise plotteth down Cornwall as it now
         standeth.                                --Carew.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

55 Moby Thesaurus words for "plotting":
   Byzantine, Machiavellian, artifice, cabal, calculating, collusion,
   collusive, complicity, complot, confederacy, connivance, connivent,
   conniving, conspiracy, conspiring, contrivance, contriving,
   counterplot, covin, deep-laid plot, designing, engineering,
   finagling, finesse, frame-up, game, intrigue, intriguing,
   little game, machination, maneuvering, manipulation, packed deal,
   packed jury, planning, plot, prearrangement, preconcertedness,
   premeditation, preordering, put-up job, rigged jury, rigging,
   scheme, schemery, scheming, setup, stacked deck, stratagem,
   stratagemical, trick, underplot, up to, web of intrigue,
   wire-pulling