ferocity vs glee

ferocity

noun
  • The condition of being ferocious. 

glee

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

noun
  • Music; minstrelsy; entertainment. 

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

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

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