heaviness vs tenderness

heaviness

noun
  • The state of being heavy; weight, weightiness, force of impact or gravity. 

tenderness

noun
  • pain or discomfort when an affected area is touched 

  • a tendency to express warm, compassionate feelings 

  • concern for the feelings or welfare of others 

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