devilry vs voodooism

devilry

noun
  • An action performed with the help of a devil; witchcraft. 

  • Wickedness; cruelty. 

  • mischief. 

  • An act of such mischief, wickedness, cruelty, or witchcraft. 

voodooism

noun
  • Any voodoo practice. 

  • A religious cult, from Haiti, involving witchcraft and sorcery. 

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