bon voyage

used to wish someone a safe and enjoyable journey before they embark on a trip

The phrase "bon voyage" originated in France and is commonly used in French-speaking countries. It reflects the French culture of politeness and courtesy, especially in social interactions and farewells. Over time, "bon voyage" has been adopted and used in various parts of the world, particularly in English-speaking countries where it's recognized as a polite and elegant way to wish someone well before their travels.