A more thorough explanation:

Definition: Mixed cognation is a type of relationship that combines the ties of blood and family. It exists between two people who are related by both blood and family, such as brothers who are born of the same marriage.

For example, if two brothers are born to the same parents, they have a mixed cognation relationship. This means that they are related by blood, as they share the same biological parents, and by family, as they are part of the same household and have grown up together.

Mixed cognation is different from other types of relationships, such as civil cognation, which is a relationship created by law, such as adoption, and natural cognation, which is a blood relationship that arises from an illicit connection.

Overall, mixed cognation is a unique type of relationship that combines the ties of blood and family, and it is important to understand its definition and examples to better understand family relationships.