ersatz vs incorrect

ersatz

adj
  • Made in imitation; artificial, especially of a poor quality. 

noun
  • Something made in imitation; an effigy or substitute. 

incorrect

adj
  • Faulty or defective. 

  • Not correct; erroneous or wrong. 

  • Inappropriate or improper. 

noun
  • An item or response that is incorrect. 

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