cad vs wretch

cad

noun
  • A low-bred, presuming person; a mean, vulgar fellow, especially one that cannot be trusted with a lady. 

wretch

noun
  • An unpleasant, annoying, worthless, or despicable person. 

  • An unhappy, unfortunate, or miserable person. 

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