Its source is a Gaelic expression meaning "British warrior."
This meaning is uncertain, as it is based on a separate analysis of the name's two elements. It assumes that cal was derived from Ceallach (''contentious''), as in the Irish surname Callahan, and braith was derived from Bhreathnach (''Briton''), as in the Scottish surname Galbraith.
Science and Philosophy
Calbraith P. Rodgers
First pilot to cross the U.S. by airplane, in 1911.