A more thorough explanation:

Consanguineo

A legal term that refers to a writ used by an heir to claim the right to land held by a great-great-grandfather or certain collateral relatives. It is also known as cosinage or cousinage.

If someone wants to claim the land of their first cousin or uncle, they would use the writ of consanguineo or cosinage to secure their right to the land.

This legal term is used to describe the process of claiming land that is held by a relative who is not a direct ancestor or descendant. It is important to note that this writ is only used for specific relatives and not for all collateral relatives.