coldness vs frigidity

coldness

noun
  • The relative lack of heat. 

  • Limited enthusiasm or affection; coolness. 

  • The sensation resulting from exposure to low temperatures. 

  • The reciprocal of absolute temperature. 

frigidity

noun
  • Lack of natural heat and vigor of body; impotency. 

  • The state of being frigid; coldness; lack of heat. 

  • Coldness of feeling, manner or quality; lack of ardor, animation or vivacity. 

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