prevarication vs vagueness

prevarication

noun
  • Evasion of the truth. 

  • A secret abuse in the exercise of a public office. 

  • A false or deceitful seeming to undertake a thing for the purpose of defeating or destroying it. 

  • The collusion of an informer with the defendant, for the purpose of making a sham prosecution. 

vagueness

noun
  • The condition of being unclear; vague. 

  • Something which is vague, or an instance or example of vagueness. 

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