ersatz vs pseudo

ersatz

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

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

pseudo

noun
  • A poseur; one who is fake. 

  • An intellectually pretentious person; a pseudointellectual. 

  • pseudo-city code 

  • A pseudonym; a false name used for online anonymity. 

adj
  • Other than what is apparent; spurious; sham. 

  • Insincere. 

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