dispel vs drive off

dispel

verb
  • To drive away or cause to vanish by scattering. 

  • To remove (fears, doubts, objections etc.) by proving them unjustified. 

noun
  • An act or instance of dispelling. 

drive off

verb
  • To force to leave or go away. 

  • Used other than figuratively or idiomatically: see drive, off. 

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