martyrdom vs torment

martyrdom

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

  • 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. 

torment

noun
  • Any extreme pain, anguish or misery, either physical or mental. 

  • Torture, originally as inflicted by an instrument of torture. 

verb
  • To cause severe suffering to (stronger than to vex but weaker than to torture.) 

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