crucifixion vs martyrization

crucifixion

noun
  • An execution by being nailed or tied to an upright cross and left to hang there until dead. 

  • An ordeal, terrible, especially malicious treatment imposed upon someone. 

  • The death on the Cross of Christ. 

  • The military punishment of being tied to a fixed object, often with the limbs in a stretched position. 

martyrization

noun
  • The act or process of martyrizing. 

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