COGNATION, noun 1. In the civil law, kindred or natural relation between males and females, both descended from the same father; as agnation is the relation between males only descended from the same stock. 2. Kindred; relation by descent from the same original. Pride and hardheartedness are of near cognation to ingratitude. 3. Relation; participation of the same nature.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI