ataraxy vs coolness

ataraxy

noun
  • State of psychological calm and tranquility, absence of discomfort, or metabolical inactivity. 

  • Ataraxia; freedom from mental disturbance; imperturbability, dogged indifference. 

coolness

noun
  • The state of being cool, i.e. calm. 

  • Indifference; lack of passion or interest. 

  • The state of being cool, i.e. good or pleasing. 

  • The result or product of being cool, i.e. good or pleasing. 

  • The state of being cool, i.e. chilly. 

  • The result or product of being cool, i.e. chilly. 

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