curtilage vs plaza

curtilage

noun
  • The area immediately surrounding a house, especially dooryard areas and sometimes including closely associated buildings and structures. 

plaza

noun
  • An open area used for gathering in a city, often having small trees and sitting benches. 

  • A town's public square. 

  • A shopping mall. 

  • A strip mall. 

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