harassment vs persecution

harassment

noun
  • Deliberate pestering or intimidation. 

  • The use of repeated small-scale attacks to wear down an enemy force. 

  • Persistent attacks and criticism causing worry and distress. 

persecution

noun
  • The act of persecuting. 

  • A program or campaign to subjugate or eliminate a specific group of people, often based on race, religion, sexuality, or social beliefs. 

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