drip vs percolate

drip

noun
  • A drop of a liquid. 

  • A limp, ineffectual, or uninteresting person. 

  • Style; swagger; fashionable and/or expensive clothing. 

  • A falling or letting fall in drops; act of dripping. 

  • A dividend reinvestment program; a type of financial investing. 

  • An apparatus that slowly releases a liquid, especially one that intravenously releases drugs into a patient's bloodstream. 

  • That part of a cornice, sill course, or other horizontal member, which projects beyond the rest, and has a section designed to throw off rainwater. 

verb
  • To have a superabundance of valuable things. 

  • To rain lightly. 

  • To be wet, to be soaked. 

  • To fall one drop at a time. 

  • To whine or complain consistently; to grumble. 

  • To leak slowly. 

  • To let fall in drops. 

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. 

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