abandoned vs castoff

abandoned

adj
  • No longer maintained by its former owners, residents, or caretakers; forsaken, deserted. 

  • Having given oneself up to vice; immoral; extremely wicked, or sinning without restraint; irreclaimably wicked. 

  • No longer being acted upon by the geologic forces that formed it. 

  • Free from constraint; uninhibited. 

castoff

adj
  • discarded, rejected. 

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

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