half-grandaunt

Grandparent's half-sister.

My half-grandaunt is a good person.

half-grandaunt by Hgcloziw November 23, 2019

co-grandaunt-in-law 

The wife of one's grandparent-in-law's brother.

My co-grandaunt-in-law is a good person.

co-grandaunt-in-law by Elivaldeq November 24, 2019

great-grandaunt-in-law 

1- Great-granduncle's wife.
2- Spouse's great-grandaunt.

My great-grandaunt-in-law is a good person.

great-grandaunt-in-law by Gerald128 April 7, 2021

co-grandaunt-in-law 

Spouse's granduncle's wife.

My co-grandaunt-in-law is a good person.

co-grandaunt-in-law by Gerald128 April 7, 2021

2X-grandaunt 

Great-grandaunt.

My 2X-grandaunt is a good person.

2X-grandaunt by KL198 June 25, 2021

3X-grandaunt

Great-great-grandaunt.

My 3X-grandaunt is a good person.

3X-grandaunt by KL198 June 25, 2021

5X-grandaunt

Great-great-great-great-grandaunt.

My 5X-grandaunt is a good person.

5X-grandaunt by N8953SW June 26, 2021