illegality vs negligence

illegality

noun
  • the state of being illegal 

  • a defense to the validity of a contract because it was in violation of the law 

negligence

noun
  • The state of being negligent. 

  • The breach of a duty of care: the failure to exercise a standard of care that a reasonable person would have in a similar situation. 

  • The tort whereby a duty of reasonable care was breached, causing damage: any conduct short of intentional or reckless action that falls below the legal standard for preventing unreasonable injury. 

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