fencing vs prevarication

fencing

noun
  • Receiving and buying of stolen goods. 

  • The art or sport of duelling with swords, especially with the 17th- to 18th-century European dueling swords and the practice weapons descended from them (sport fencing). 

  • Material used to make fences, fences used as barriers or an enclosure. 

prevarication

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

  • 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. 

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