bon appetit
From Longman Dictionary of Contemporary Englishbon appetitbon ap‧pe‧tit /ˌbɒn æpəˈtiː $ ˌboʊn æpeɪ-/ interjection said to someone before they start eating a meal, to tell them you hope they enjoy their foodExamples from the Corpusbon appetit• Happy New Year, and, as always, bon appetit.Origin bon appetit (1800-1900) French bon appétit “good appetite”