largesse vs mash note

largesse

noun
  • A benevolent demeanor. 

  • The gifts or money given in such a way. 

  • Generosity in the giving of gifts or money. 

mash note

noun
  • gushing praise 

  • A love letter 

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