rebuild vs undo

rebuild

noun
  • A process or result of rebuilding. 

verb
  • To build again or anew. 

undo

noun
  • An operation that reverses a previous action. 

verb
  • To reverse the effects of an action. 

  • To unfasten. 

  • To impoverish or ruin, as in reputation; to cause the downfall of. 

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