arousal vs fortitude

arousal

noun
  • A physiological and psychological state of being awake or reactive to stimuli, including elevated heart rate and blood pressure and a condition of sensory alertness, mobility and readiness to respond. 

  • The act of arousing or the state of being aroused. 

  • Arousal from sleep or hibernation. 

  • Sexual arousal. 

fortitude

noun
  • Mental or emotional strength that enables courage in the face of adversity. 

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