rend vs revamp

rend

verb
  • 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. 

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

noun
  • A violent separation of parts. 

revamp

noun
  • An act of improving, renewing, renovating, or revising something; an improvement, renovation, revamping, or revision. 

verb
  • To improve, renew, renovate, or revise (something). 

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