halfcousin

A halfcousin is a relative who shares one grandparent with another person. This relationship arises when two individuals have parents who are half-siblings. For example, if a person's mother has a sister, but not a brother, and that sister has a child, then that child is the person's halfcousin. The relationship is similar to that of a full cousin, but with one less shared grandparent.

The term "halfcousin" is used to distinguish this specific familial connection from that of a full cousin, who shares both sets of grandparents. While the exact terminology and recognition of halfcousins can vary across different cultures and legal systems, the genealogical definition remains consistent.

The concept of halfcousins is a straightforward application of kinship terms. If two individuals are second cousins, it means they share a great-grandparent. If they are half-second cousins, they would share only one great-grandparent, meaning one of their parents' parents was a half-sibling to the other's parent's parent. This pattern continues for more distant cousin relationships.