ardor vs glee

ardor

noun
  • Spirit; enthusiasm; passion. 

  • Intense heat. 

  • Great warmth of feeling; fervor; passion. 

glee

noun
  • Joy; happiness; great delight, especially from one's own good fortune or from another's misfortune. 

  • Music; minstrelsy; entertainment. 

  • An unaccompanied part song for three or more solo voices, not necessarily merry. 

verb
  • To sing a glee (unaccompanied part song). 

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