castoff vs finished

castoff

adj
  • discarded, rejected. 

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

finished

adj
  • Done for; doomed; used up. 

  • Processed or perfected. 

  • Completed; concluded; done. 

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