porridge
Synonym discussion
Sense: noun/1
For the food sense, porridge is a broad word for a hot, thick dish made by cooking grains or similar ingredients until soft. Oatmeal is the closest everyday match when the dish is made from oats, especially in North American English. Congee is narrower: it means rice porridge, often in East or Southeast Asian cooking. Gruel is usually thinner than porridge and often sounds negative, suggesting poor or dull food. Cereal is broader in another way, because it can mean dry breakfast flakes as well as cooked grains. Say I had porridge for breakfast for the hot dish, but say We ordered congee when you mean rice porridge specifically.
Etymology
Porridge entered English in the 1500s. It developed from pottage, an older word for food cooked in a pot, and its form was also influenced by related French words for leek soup. Early uses could mean a thick soup, but later the word became the usual name for the hot soft grain dish.