What does Boxing Day have to do with boxing?
also manito, "spirit, deity, supernatural being," 1690s, from a word found throughout the Algonquian languages (cf. Delaware manutoow, Ojibwa manidoo), first in English from Unami Delaware /manet:u/.
among Algonquian-speaking peoples of North America, the spiritual power inherent in the world generally. Manitous are also believed to be present in natural phenomena (animals, plants, geographic features, weather); they are personified as spirit-beings that interact with humans and each other and are led by the Great Manitou (Kitchi-Manitou). The word was frequently used by 19th-century and early 20th-century anthropologists in their theories of animism, a religious system characteristic of many indigenous peoples. See also Coyote and Raven cycle.