precognition vs prior knowledge

precognition

noun
  • Knowledge of the future; understanding of something in advance, especially as a form of supernatural or extrasensory perception. 

  • The practice of taking a factual statement from a witness before a trial. 

prior knowledge

noun
  • Used other than figuratively or idiomatically: see prior, knowledge. 

  • Knowledge of a set of circumstances sufficient to make actions based on those circumstances wrongful. 

  • Prior to the inception of an insurance policy, knowledge of specific extant circumstances that could reasonably give rise to a claim under that policy. 

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