Angels-BOGEY-MAN

The word bogey-man derives from the term boggart or bogy, a type of
fairy related to brownies. Some accounts portray the bogey-man as a
kind of goblin, an unpleasant but not necessarily evil creature. However,
whereas a brownie would adopt a house in order to help the
inhabitants, a boggart would adopt a home in order to torment and
generally make mischief with the residents. They are said to delight in
tormenting small children by stealing their food and by almost suffocating
them at night, hence the foundation for the caution “the
Bogey-Man will get you if you don’t watch out.”