cheerio

interjection
cheer·​io | \ ˌchir-ē-ˈō How to pronounce cheerio (audio) \

Definition of cheerio

chiefly British
usually used as a farewell and sometimes as a greeting or toast

First Known Use of cheerio

1910, in the meaning defined above

History and Etymology for cheerio

cheery + -o

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The first known use of cheerio was in 1910

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