infix vs inject

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. 

inject

verb
  • To introduce or add (something that is different or foreign). 

  • To introduce (code) into an existing program or its memory space, often without tight integration and sometimes through a security vulnerability. 

  • To take or be administered something by means of injection, especially medicine or drugs. 

  • To introduce (something) suddenly or violently. 

  • To administer an injection to (someone or something), especially of medicine or drugs. 

  • To push or pump (something, especially fluids) into a cavity or passage. 

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