quits vs undifferentiated

quits

adj
  • On equal monetary terms; neither owing or being owed. 

undifferentiated

adj
  • Not differentiated, not different, alike 

  • describes a plant body where the vascular tissue has not developed, as in the thallophytes 

  • describes tissues where the individual cells have not yet developed mature or distinguishing features, or describes embryonic organisms where the organs cannot be identified. 

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