instillation vs potpourri

instillation

noun
  • The act of instilling. 

  • That which is instilled. 

potpourri

noun
  • An anthology of miscellaneous prose. 

  • A ragout or stew of meat and vegetables. 

  • A mixture of dried fragrant plant material, often in a decorative bowl, used to scent a room. 

  • A collection of various things; an assortment, mixed bag or motley. 

  • A medley of songs or music. 

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