intaglio vs stipple

intaglio

noun
  • Any printing method in which the ink is laid upon the sunken parts of the printing form. 

  • A design or piece of art which is engraved or etched into something. 

verb
  • To engrave or etch using intaglio. 

stipple

noun
  • The use of small dots that give the appearance of shading; the dots thus used. 

verb
  • To use small dots to give the appearance of shading to. 

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