ciao vs privet

ciao

intj

  • hello, hi. 

  • bye, goodbye. 

noun

  • A greeting or farewell using the word "ciao". 

privet

intj

  • hello, hi 

noun

  • Any of various shrubs and small trees in the genus Ligustrum. 

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