assault vs first-degree murder

assault

noun
  • The crime whose action is such an attempt. 

  • A non-competitive combat between two fencers. 

  • A violent onset or attack with physical means, for example blows, weapons, etc. 

  • A violent verbal attack, for example with insults, criticism, and the like 

  • An act that causes someone to apprehend imminent bodily harm (such as brandishing a weapon). 

  • An attempt to commit battery: a violent attempt, or willful effort with force or violence, to do hurt to another, but without necessarily touching the person, such as by raising a fist in a threatening manner, or by striking at the person and missing. 

  • The tort whose action is such an act. 

verb
  • To threaten or harass. 

  • To attack, physically or figuratively; to assail. 

first-degree murder

noun
  • An act that constitutes the crime of first-degree murder. 

  • The criminal offence of murder in a form considered by law to be the most serious; the precise distinction may vary by jurisdiction but typically involves premeditation, or the choice of victim or other circumstances being regarded as especially blameworthy. 

How often have the words assault and first-degree murder occurred in a corpus of books? (source: Google Ngram Viewer )