dispel vs drive away

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 away

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

  • To force someone or something to leave 

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