disenchantment vs fervor

disenchantment

noun
  • The act of disenchanting or the state of being disenchanted. 

  • Freeing from false belief or illusions. 

fervor

noun
  • Heat. 

  • An intense, heated emotion; passion, ardor. 

  • A passionate enthusiasm for some cause. 

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