harm vs safeguard

harm

noun
  • That which causes injury, damage, or loss. 

  • detriment; misfortune. 

  • physical injury; hurt; damage 

  • emotional or figurative hurt 

verb
  • To cause injury to another; to hurt; to cause damage to something. 

safeguard

noun
  • Something that serves as a guard or protection; a defense. 

  • A safe-conduct or passport, especially in time of war. 

  • One who, or that which, defends or protects; defence; protection. 

verb
  • To escort safely. 

  • To implement safeguarding. 

  • To protect, to keep safe. 

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