doubling of the last part to express a disorder...
did you mean banga ?
nganga,
pl. banganga (class 1a/2 : - / ba-)
monganga,
pl. minganga (class 3/4 : mo- (mu-) / mi- : objects)
munganga,
pl. minganga (class 3/4 : mo- (mu-) / mi- : objects)Kinshasa version
expert, magician, medical doctor, healer, seeing geek, marabout