enlightenment vs mix-up

enlightenment

noun
  • An act of enlightening, or the state of being enlightened or instructed. 

  • A concept in spirituality, philosophy and psychology related to achieving clarity of perception, reason and knowledge. 

mix-up

noun
  • A confusion, mistake, muddle or misunderstanding 

How often have the words enlightenment and mix-up occurred in a corpus of books? (source: Google Ngram Viewer )