nanny vs posset

nanny

verb
  • To treat like a nanny's charges; to coddle. 

  • To serve as a nanny. 

noun
  • A child's nurse. 

  • A godmother. 

  • A female goat. 

  • A grandmother. 

posset

verb
  • To treat with possets; to pamper. 

  • To vomit up curdled milk. 

noun
  • A beverage composed of hot milk curdled by some strong infusion, such as wine. 

  • A baby's vomit, comprising curdled milk. 

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