castoff vs moss-grown

castoff

adj
  • discarded, rejected. 

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

moss-grown

adj
  • Old; old-fashioned, out of date. 

  • Having a covering of growing moss. 

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