Early 19th century. From Setswana regional (Rolong) Barolong the members of the Rolong people collectively, plural of Morolong from ba-, plural class prefix + -rolong.
Definition of Barolong in US English:
Barolong
(also baRolong, Baralong, ba-Rolong)
adjectiveˈbarəlɒŋ
= Rolong.
nounˈbarəlɒŋ
= Rolong.
Origin
Early 19th century. From Setswana regional (Rolong) Barolong the members of the Rolong people collectively, plural of Morolong from ba-, plural class prefix + -rolong.