The Collaborative International Dictionary of English v.0.48:

Stencil \Sten"cil\, v. t. [imp. & p. p. Stenciledor
   Stencilled; p. pr. & vb. n. Stenciling or Stencilling.]
   To mark, paint, or color in figures with stencils; to form or
   print by means of a stencil.
   [1913 Webster]