rascal vs saprophage

rascal

noun
  • A dishonest person; a rogue, a scoundrel, a trickster. 

  • Sometimes diminutive: a cheeky person or creature; a troublemaker. 

  • A member of a criminal gang. 

saprophage

noun
  • A degenerate person; a wastrel. 

  • A detritivore. 

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