The Collaborative International Dictionary of English v.0.48:

Scheme \Scheme\, v. t. [imp. & p. p. Schemed; p. pr. & vb. n.
   Scheming.]
   To make a scheme of; to plan; to design; to project; to plot.
   [1913 Webster]

         That wickedness which schemed, and executed, his
         destruction.                             --G. Stuart.
   [1913 Webster]