dispel vs overpower

dispel

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

  • To drive away or cause to vanish by scattering. 

noun
  • An act or instance of dispelling. 

overpower

verb
  • To render imperceptible by means of greater strength, intensity, etc. 

  • To make excessively powerful. 

  • To excel or exceed in power; to cause to yield; to subdue. 

  • To subdue someone by superior force. 

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