drive off vs overpower

drive off

verb
  • To force to leave or go away. 

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

overpower

verb
  • To subdue someone by superior force. 

  • To make excessively powerful. 

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

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

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