castoff vs exanimate

castoff

adj
  • discarded, rejected. 

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

exanimate

adj
  • Spiritless, dispirited, disheartened, not lively. 

  • Lifeless, not or no longer living, dead. 

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