impact vs rend

impact

verb
  • To collide or strike, the act of impinging. 

  • To stamp or impress onto something. 

  • To significantly or strongly influence or affect; to have an impact on. 

  • To compress; to compact; to press into something or pack together. 

noun
  • A significant or strong influence or effect. 

  • A forced impinging. 

  • The striking of one body against another; collision. 

  • The force or energy of a collision of two objects. 

rend

verb
  • To separate into parts with force or sudden violence; to split; to burst 

  • To part or tear off forcibly; to take away by force; to amputate. 

  • To be rent or torn; to become parted; to separate; to split. 

noun
  • A violent separation of parts. 

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