ravishment vs sexual violence

ravishment

noun
  • rape 

  • ecstasy 

  • seizure by force 

sexual violence

noun
  • A broad term encompassing sexual assault, harassment, indecent assault, rape, and other sexual offences. 

  • (When contrasted with sexual assault.) A physical attack of a sexual nature involving penetration (as apposed to sexual assault which may not involve actual penetration). 

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