caries vs ruination

caries

noun
  • The progressive destruction of bone or tooth by decay 

ruination

noun
  • The cause of being ruined, destroyed or lost. 

  • The state of being ruined, a state of devastation or destruction. 

  • A loss of reputation. 

  • The act of ruining or wrecking. 

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