CEVAP:

Endogamy is the practice of marrying only within a specific ethnic, social or religious group and rejecting people out of this group. The most common subcategory under endogamy is cousin marriages. A cousin marriage may be a parallel cousin or a cross cousin marriage. A parallel cousin is a cousin from the parent’s same sex sibling, like the child of the father’s brother or the child of the mother’s sister. A cross cousin is a cousin from the parent’s opposite sex sibling, like the child of the fathers’ sister or the child of the mother’s brother.