from The Century Dictionary.
- In an agnatic manner; by means of agnation.
Sorry, no etymologies found.
Family group in this context refers to an agnatically linked man (the munumzane, his brothers, their married sons), that man's wife or wives, and their offspring; this unit in turn consists of the houses (singular, yindlu) formed by each married woman with her children.
On the same principle they cannot be held to be consanguinei of one another, for consanguinei are in a way agnatically related: consequently, they are connected with one another only as cognates, and in the same way too with the cognates of their mother.