cheero vs ciao

cheero

intj

  • A friendly greeting 

  • Synonym of cheerio 

  • Synonym of cheers 

ciao

intj

  • hello, hi. 

  • bye, goodbye. 

noun

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

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