endure vs hang in

endure

verb
  • To continue or carry on, despite obstacles or hardships; to persist. 

  • To tolerate or put up with something unpleasant. 

  • To remain firm, as under trial or suffering; to suffer patiently or without yielding; to bear up under adversity; to hold out. 

  • To last. 

  • To suffer patiently. 

hang in

verb
  • To remain in a particular place or status. 

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