percolate vs vodka

percolate

noun
  • A liquid that has been percolated. 

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

  • To make (coffee) in a percolator. 

  • To drain or seep through a porous substance. 

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

vodka

noun
  • A serving of the above beverage. 

  • Neutral spirits distilled (or treated after distillation) so as to have no distinctive character, aroma, taste, or color. 

  • A clear distilled alcoholic liquor made from grain mash. 

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