Gumbo is often categorized by the type of thickener used: the African vegetable okra, the Choctaw spice filé powder , or roux, the French base made of flour and fat. The dish likely derived its name from either the Bantu word for okra or the Choctaw word for filé . The dish combines ingredients and culinary practices of several cultures, including West African, French, Spanish, German, and Choctaw.