inject vs percolate

inject

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

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

percolate

verb
  • To drain or seep through a porous substance. 

  • To pass a liquid through a porous substance; to filter. 

  • To make (coffee) in a percolator. 

  • To spread slowly or gradually; to slowly become noticed or realised. 

noun
  • A liquid that has been percolated. 

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