from The Century Dictionary.
- Cognate; pertaining to relationship by descent from one pair. See
Sorry, no etymologies found.
Common to most lowland areas was cognatic kinship (descent reckoned equally through males and females) and, thus, the downgrading of the importance of lineage.
The family of the _ius civile_ is the agnatic family; the family of the _ius gentium_ is the cognatic family.
The most elementary of these groups is the _maegth_, the association of agnatic and cognatic relations.
The cultures in question did not begin at one point and radiate from it, but arose simultaneously over wide areas, in different linguistic stocks, with slight connections; and only later, and secondarily, was it successfully concentrated by some one tribe -- by the agency, it is now believed, of cognatic rather than geographic aids.
The prohibition does not extend to cognatic relationship, but a man must not marry into the family of his paternal aunt.
4 It is clear that illegitimate children can have no agnates, for in law they have no father, and it is through the father that agnatic relationship is traced, while cognatic relationship is traced through the mother as well.