carol vs glee

carol

verb
  • To sing in a joyful manner. 

  • To sing carols; especially to sing Christmas carols in a group. 

  • To praise or celebrate in song. 

  • To sing (a song) cheerfully. 

  • To participate in a carol (a round dance accompanied by singing). 

noun
  • A (usually traditional) religious or secular song sung at Christmastime. 

  • A round dance accompanied by singing. 

  • A ballad or song of joy. 

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 carol and glee occurred in a corpus of books? (source: Google Ngram Viewer )