On this Wikipedia the language links are at the top of the page across from brownie in a mug article title. For the seaweed called gruagach, see Desmarestia.

Illustration of a brownie by Alice B Woodward. Illustration of a brownie sweeping with a handmade broom by Alice B. Hobgoblin from Scottish folklore that is said to come out at night while the owners of the house are asleep and perform various chores and farming tasks. Brownies originated as domestic tutelary spirits, very similar to the Lares of ancient Roman tradition. Descriptions of brownies vary regionally, but they are usually described as ugly, brown-skinned, and covered in hair.

In the oldest stories, they are usually human-sized or larger. In more recent times, they have come to be seen as small and wizened. Although the name brownie originated as a dialectal word used only in the UK, it has since become the standard term for all such creatures throughout the UK and Ireland. Regional variants in England and Scotland include hobs, silkies, and ùruisgs.

Roman Lararium, or household shrine to the Lares, from the House of the Vettii in Pompeii. Brownies bear many similarities to the Roman Lares. Brownies originated as domestic tutelary spirits, very similar to the Lares of ancient Roman tradition, who were envisioned as the protective spirits of deceased ancestors. The family cult of deceased ancestors in ancient times centred around the hearth, which later became the place where offerings would be left for the brownie. Traditions about brownies are generally similar across different parts of Great Britain. They are said to inhabit homes and farms.