infix vs inset

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. 

inset

verb
  • To insert something. 

  • To add an inset to something. 

  • To set in; infix or implant. 

noun
  • A small piece of material used to strengthen a garment. 

  • A smaller thing set into a larger thing, such as a small picture inside a larger one. 

  • Anything inserted. 

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