What is adieu?

"Adieu" is a French word that is commonly used as a farewell or goodbye. It is derived from the phrase "à Dieu," which means "to God," and historically implies entrusting someone to God's care when parting. In English-speaking contexts, "adieu" is often considered more formal or poetic than simply saying goodbye. It has been used in various literary works, songs, and cultural references to convey a sense of finality or deep sentiment in parting. The term is less commonly used in everyday conversation today but still appears in artistic and expressive contexts.