Where does “adieu” come from?

adieu (Middle English) comes from Old French adieu, from Medieval Latin ad Deum — to God; goodbye.

Ancestry of “adieu”, step by step

StepLanguageWordMeaning
1Old Frenchadieuto God
2Medieval Latinad Deumto God; goodbye

Words derived from “adieu

Every word from Medieval Latin ad DeumEvery word from Old French adieu