piggy vs pigling

piggy

noun
  • A pig (the animal). 

  • A toe. 

  • A pig, a greedy person. 

  • A member of the police. 

  • A guinea pig. 

adj
  • slovenly, dirty 

  • greedy 

pigling

noun
  • A little or young pig; a piglet. 

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