certainty vs suspicion

certainty

noun
  • An instance of being certain. 

  • The state of being certain. 

  • A fact or truth unquestionably established. 

suspicion

noun
  • The condition of being suspected. 

  • Uncertainty, doubt. 

  • The imagining of something without evidence. 

  • The act of suspecting something or someone, especially of something wrong. 

  • A trace, or slight indication. 

verb
  • To suspect; to have suspicions. 

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