monogram vs stencil

monogram

verb
  • To mark something with a monogram. 

noun
  • A design or motif composed of one or more letters, often intertwined, used as an identifying mark of an individual or institution. 

stencil

verb
  • To print with a stencil. 

noun
  • A two-ply master sheet for use with a mimeograph. 

  • A thin sheet, either perforated or using some other technique, with which a pattern may be produced upon a surface; a utensil that contains a perforated sheet. 

  • A pattern produced using such a utensil. 

How often have the words monogram and stencil occurred in a corpus of books? (source: Google Ngram Viewer )