illustrative vs monitorial

illustrative

adj
  • Demonstrative, exemplative, showing an example or demonstrating. 

monitorial

adj
  • Of, or relating to an admonition; monitory. 

  • Not secret and therefore printed in the Monitor. 

  • Of, or relating to monitors. 

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