Canadian province, named for the lake, which was named for an island in the lake; from Algonquian manitou "great spirit" (see manitou).
Entries linking to manitoba
manitou n.
also manito, "spirit, object of religious awe or reverence, deity, supernatural being," 1690s, from a word found throughout the Algonquian languages (Delaware manutoow, Ojibwa manidoo), first in English from Unami Delaware /manet:u/.