Source : Webster's Revised Unabridged Dictionary (1913)

Crayon \Cray"on\, v. t. [imp. & p. p. {Crayoned} (-?nd); p. pr.
   & vb. n. {Crayoning}.] [Cf. F. crayonner.]
   To sketch, as with a crayon; to sketch or plan.

         He soon afterwards composed that discourse, conformably
         to the plan which he had crayoned out.   --Malone.