take it vs undergo

take it

verb
  • to reluctantly accept or believe; to acquiesce 

  • to suppose 

  • to start doing 

  • Used other than figuratively or idiomatically: see take, it. 

undergo

verb
  • To suffer or endure; bear with. 

  • To experience; to pass through a phase. 

  • The project is undergoing great changes. 

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