ravage vs self-blood

ravage

noun
  • Grievous damage or havoc. 

  • Depredation or devastation. 

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. 

self-blood

noun
  • The shedding of one's own blood; self-slaughter; suicide. 

  • One's direct progeny or offspring. 

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