pejoration vs ruination

pejoration

noun
  • The act or process of becoming worse; worsening or degeneration. 

  • The process by which a word acquires a more negative meaning over time. 

ruination

noun
  • The act of ruining or wrecking. 

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

  • A loss of reputation. 

  • The cause of being ruined, destroyed or lost. 

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