overkill vs surfeit

overkill

verb
  • To do something excessive to achieve a goal. 

  • To destroy something with more (nuclear) force than is required. 

  • To dispose of too many items because of too-high criteria of inspection. 

noun
  • An unnecessary excess of disposal because of too high criteria of inspection. 

  • Destruction beyond what is necessary to kill, especially in murder. 

  • A destructive capacity that exceeds that needed to destroy an enemy; especially with nuclear weapons. 

  • An unnecessary excess of whatever is needed to achieve a goal. 

surfeit

verb
  • To indulge (in something) to excess. 

  • To fill (something) to excess. 

  • To supply (someone) with something to excess; to disgust (someone) through overabundance. 

  • To satisfy (someone's appetite) to excess (both literally and figuratively). 

  • To overeat or feed to excess (on or upon something). 

  • To feed (someone) to excess (on, upon or with something). 

  • To become sick from overindulgence (both literally and figuratively). 

  • To make (someone) sick as a result of overconsumption. 

noun
  • Disgust caused by excess; satiety. 

  • A group of skunks. 

  • A sickness or condition caused by overindulgence. 

  • Overindulgence in either food or drink; overeating. 

  • An excessive amount of something. 

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