frigidity vs weakness

frigidity

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

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

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

weakness

noun
  • An inadequate quality; fault 

  • The condition of being weak. 

  • A special fondness or desire. 

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