calvary vs martyrdom

calvary

noun
  • A life-size representation of the crucifixion of Jesus Christ on a piece of raised ground. 

  • A strenuous experience. 

  • A type of monumental public Christian cross, sometimes encased in an open shrine. 

  • A series of representations of Christ’s Passion in a church. 

martyrdom

noun
  • The condition of a martyr; the death of a martyr; the suffering of death on account of adherence to the Christian faith, or to any cause. 

  • Extreme suffering, affliction; torment; torture, especially without reason. 

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