amiss vs ersatz

amiss

adj
  • Wrong; faulty; out of order; improper or otherwise incorrect. 

adv
  • Astray. 

  • Imperfectly. 

ersatz

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

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

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