combine vs percolate

combine

verb
  • To have two or more things or properties that function together. 

  • In the game of casino, to play a card which will take two or more cards whose aggregate number of pips equals those of the card played. 

  • To come together; to unite. 

  • To bring (two or more things or activities) together; to unite. 

noun
  • Especially, a joint enterprise of whatever legal form for a purpose of business or in any way promoting the interests of the participants, sometimes with monopolistic or fraudulent intentions. 

  • An artwork falling between painting and sculpture, having objects embedded into a painted surface. 

  • An industrial conglomeration in a socialist country, particularly in the former Soviet bloc. 

  • A Test match in which applicants play in the hope of earning a position on a professional football team. 

  • A combine harvester 

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 combine and percolate occurred in a corpus of books? (source: Google Ngram Viewer )