abstention vs castoff

abstention

noun
  • The act of abstaining or refraining (from). 

  • Non-participation in the political world; as a country avoiding international affairs. 

  • The act of declining to vote on a particular issue. 

castoff

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

adj
  • discarded, rejected. 

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