arousal vs kindling

arousal

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

  • 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. 

  • Arousal from sleep or hibernation. 

  • Sexual arousal. 

kindling

noun
  • The act by which something is kindled. 

  • Small pieces of wood and twigs used to start a fire. 

adj
  • Illuminated, lit. 

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