pignoli vs pine nut

pignoli

noun

  • pine nuts 

  • A cookie made with pine nuts, a type of amaretto. 

pine nut

noun

  • The edible seed of any of several species of evergreen pine, especially Pinus pinea, Pinus cembra, and Pinus cembroides. 

  • The flavor that results from mixing pineapple and coconut. 

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