don vs undo

don

noun
  • An employee of a university residence who lives among the student residents. 

  • A mafia boss. 

  • Any man, bloke, dude. 

  • A university professor, particularly one at Oxford or Cambridge. 

verb
  • To put on clothing; to dress (oneself) in an article of personal attire. 

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 don and undo occurred in a corpus of books? (source: Google Ngram Viewer )