percolate vs plip

percolate

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. 

noun
  • A liquid that has been percolated. 

plip

verb
  • To make the sound of liquid hitting a hard surface. 

  • To lock or unlock using a remote control locking device. 

noun
  • A light sound or action like liquid hitting a surface. 

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