assassinate vs snuff out

assassinate

verb
  • To murder someone, especially an important person, by a sudden or obscure attack, especially for ideological or political reasons. 

  • To harm, ruin, or defame severely or destroy by treachery, slander, libel, or obscure attack. 

snuff out

verb
  • To kill a living being. 

  • To extinguish, to stop a process, to kill, to rub out. 

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