disreputable vs ersatz

disreputable

adj
  • Not respectable, lacking repute; discreditable. 

noun
  • A person who is not reputable. 

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 disreputable and ersatz occurred in a corpus of books? (source: Google Ngram Viewer )