castaway vs moocher

castaway

noun
  • An outcast; someone cast out of a group or society. 

  • A discarded person or thing. 

  • A shipwrecked sailor. 

adj
  • Cast adrift or ashore; marooned. 

  • Shipwrecked. 

  • Cast out; rejected or excluded from a group. 

moocher

noun
  • A person having a tendency to take advantage of the help of others, especially if making little effort to help themselves. 

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