Derived from gimoozaabi, an Ojibwe and Potawatomi word that may mean 'he/she looks out in secret',[1] it has been occasionally translated as "trusty scout" or "faithful friend".
[2] Jim Jewell, director of The Lone Ranger radio show from 1933 to 1939, took the phrase from Kamp Kee-Mo Sah-Bee, a boys' camp on Mullett Lake in Michigan, established by his father-in-law Charles W. Yeager in 1916.
[3] Yeager himself probably took the term from Ernest Thompson Seton, one of the founders of the Boy Scouts of America, who had given the meaning "scout runner" to Kee-mo-sah'-bee in his 1912 book The Book of Woodcraft and Indian Lore.
[4] Kamp Kee-Mo Sah-Bee was in an area inhabited by the Ottawa, who speak a language that is mutually comprehensible with Ojibwe.
John D. Nichols and Earl Nyholm's A Concise Dictionary of Minnesota Ojibwe defines the Ojibwe word giimoozaabi as 'he peeks' (and, in theory, 'he who peeks'), making use of the prefix giimoo(j)-, 'secretly'; Rob Malouf, now an associate professor of linguistics at San Diego State University, suggested that giimoozaabi may indeed have also meant scout (i.e., 'one who sneaks').