sortilege vs taboo

sortilege

noun
  • Witchcraft, magic, especially as a means of making decisions or predictions. 

taboo

noun
  • Something which may not be used, approached or mentioned because it is sacred. 

  • An inhibition or ban that results from social custom or emotional aversion. 

adj
  • Culturally forbidden. 

  • Excluded or forbidden from use, approach or mention. 

verb
  • To ban. 

  • To avoid. 

  • To mark as taboo. 

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