Nzadi o Nzere
Nzadi means "river" (probably [big] river): http://www.kupsala.net/risto/kongo/kituba-english.html .
Therefore, I surmise that "Nzadi o Nzere" most likely means something like "the [Big] River That Swallows", with swallowing in the poetic sense of being the destination of its tribuaries.
Therefore, I surmise that "Nzadi o Nzere" most likely means something like "the [Big] River That Swallows", with swallowing in the poetic sense of being the destination of its tribuaries.