accroach vs purloin

accroach

verb
  • To encroach. 

  • To usurp, as jurisdiction or royal prerogatives. 

  • To hook, or draw to oneself as with a hook. 

purloin

verb
  • To commit theft; to thieve. 

  • To take the property of another, often in breach of trust; to appropriate wrongfully; to steal. 

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