great-great-great-great-nibling 

Sibling's great-great-great-grandchild.

My great-great-great-great-nibling is a good person.

great-great-great-great-nibling by Gtopql November 23, 2019

co-great-nibling-in-law 

The grandchild-in-law of one's spouse's sibling.

My co-great-nibling-in-law is a good person.

co-great-nibling-in-law by Elivaldeq November 24, 2019

step-great-nibling

1. The grandchild of one's stepsibling.
2. The stepgrandchild of one's sibling.

My step-great-nibling is a good person.

step-great-nibling by Elivaldeq November 24, 2019

great-great-great-nibling 

Sibling's great-great-grandchild.

great-great-great-nibling.

great-great-great-nibling by Zabombini October 5, 2024

half-great-nibling 

Half-sibling's grandchild.

half-great-nibling.

half-great-nibling by Zabombini October 5, 2024

half-great-great-nibling 

Half-sibling's great-grandchild.

My half-great-great-nibling is a good person.

half-great-great-nibling by Gtopql November 23, 2019

half-great-great-great-nibling

Half-sibling's great-great-grandchild.

My half-great-great-great-nibling is a good person.

half-great-great-great-nibling by Rwopazaq November 24, 2019