A fork of Rural Dictionary
1. The husband of one's grandparent's sister.
2. The brother of one's grandparent-in-law.
My granduncle-in-law is a good person.
Spouse's grandpibling's husband.
My co-granduncle-in-law is a good person.
Great-great-grandparent's brother.
My great-great-granduncle is a good person.
Great-great-grandparent's brother.
great-great-granduncle.
Great-great-great-great-granduncle.
My 5X-granduncle is a good person.