The original phrase is "ke-mo sah-bee". The origin is a little vague, some reports indicate it is an old Native American name meaning "trusted friend". It was popularized by the American show "The Lone Ranger" as the characters referred to each other as "Kemo Sabe" at times.
"Jim Jewell, director of "The Lone Ranger" from 1933 to 1939, took the phrase from "Kamp Kee-Mo Sah-Bee", a boys' camp on Mullett Lake established by Charles W. Yeager (Jewell's father-in-law) in 1911; it is from Jewell that the definition "trusty scout" originates."
The two most accredited origins are as follows:
- John Peabody Harrington's "Ethnogeography of the Tewa Indians", published in 1916, defines the Tewa words "kema" and "Sabe" as "friend" and "Apache", respectively. However, given that the Tewa language is spoken by Puebloan peoples in New Mexico, and Kamp Kee-Mo Sah-Bee was in Cheboygan County, Michigan, this origin seems unlikely.
- John D. Nichols' "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 have also meant 'scout' (i.e., "one who sneaks").