mash vs percolate

mash

verb
  • To prepare a cup of tea in a teapot; to brew (tea). 

  • To press. 

  • To press (a button) rapidly and repeatedly. 

  • To press down hard (on). 

  • To flirt, to make eyes, to make romantic advances. 

  • To convert into a mash; to reduce to a soft pulpy state by beating or pressure 

  • In brewing, to convert (for example malt, or malt and meal) into the mash which makes wort. 

noun
  • A gun. 

  • Mashed potatoes. 

  • A mixture of meal or bran and water fed to animals. 

  • Ground or bruised malt, or meal of rye, wheat, corn, or other grain (or a mixture of malt and meal) steeped and stirred in hot water for making the wort. 

  • A mass of mixed ingredients reduced to a soft pulpy state by beating or pressure; a mass of anything in a soft pulpy state. 

percolate

verb
  • To make (coffee) in a percolator. 

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

  • To drain or seep through a porous substance. 

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

noun
  • A liquid that has been percolated. 

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