castoff vs shabby

castoff

adj
  • discarded, rejected. 

noun
  • Something that has been rejected or discarded; a reject. 

shabby

adj
  • Mean; despicable. 

  • Wearing ragged, very worn, or dirty clothing. 

  • Torn or worn; unkempt. 

  • Poor; showing little effort or talent. 

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