FOGEATER is an archaic term used to describe a person who eats fog. It was first used in the early 19th century and is believed to have originated from the English dialect of the same name. The term is often used to describe someone who is overly fond of eating foggy food, such as foggy soup or foggy bread. The crossword solution for FOGEATER is ARC, which stands for 'atmospheric river condensation'. This term refers to the process of condensation that occurs when warm, moist air is forced up into the atmosphere, resulting in the formation of clouds and fog.