ravage vs self-delete

ravage

verb
  • To devastate or destroy something. 

  • To have vigorous sexual intercourse with. 

  • To pillage or sack something, to lay waste to something. 

  • To rape. 

  • To wreak destruction. 

noun
  • Depredation or devastation. 

  • Grievous damage or havoc. 

self-delete

verb
  • To self-destruct. 

  • Code that overwrites itself upon completion, usually with 0x00 or 0xFF bytes that represent an unwritten region. 

  • To commit suicide; to take one's own life. 

How often have the words ravage and self-delete occurred in a corpus of books? (source: Google Ngram Viewer )