kemosabe

kemosabe means an appellation given to a wise, trustworthy friend.

Etymology

Coined for the 1938 Lone Ranger television serial. Further etymology uncertain: *Some trace the word through the Kee-Mo Sah-Bee summer camp in Michigan to Ojibwe giimoozaabi (“he spies”). See more at Wikipedia. *Alternatively, from a corruption of Spanish quien lo sabe "(he) who knows".

noun

An appellation given to a wise, trustworthy friend.e.g.“You wanna get a beer? / Nah, I’m going home. I’ll see ya later. / Okay but don’t stay up too late, Kemosabe.” — 2019, Edward Norton, Motherless Brooklyn, spoken by Tony, Lionel (Bobby Cannavale, Edward Norton):

Definitions & examples from Wiktionary (CC BY-SA 3.0).