enlightenment vs worsening

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. 

worsening

noun
  • A worse situation; an aggravation or deterioration 

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