infix vs intaglio

infix

verb
  • To instill. 

  • To insert a morpheme inside an existing word. 

noun
  • A morpheme that always appears between other morphemes in a word, such as -i- and -o- in English (i.e. an interfix). 

  • A morpheme inserted inside an existing word, such as -bloody- in English. 

intaglio

verb
  • To engrave or etch using 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. 

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