If I have the same great grandmother as someone else are we second counsins or third counsins?

Question

I know that my mother and his father are cousins, and we have the same great grand mother, but I can't work out if that makes us second counsins, third counsins or something else again?

Answer 1

You just add one for each generation.

Children of siblinge are 1st cousins.

Children of 1st cousins are 2nd cousins.

Children of 2nd cousins are 3rd cousins

and so on.

"Siblings" is a fancy word for "brothers and/or sisters".

If you have the same great grandmother but not the same great grandfather, that means those siblings we started with were half siblings, and you add the word "half" to everyone. You and he are half second cousins.

No one but a genealogist showing off would ever use the term "half second cousin".

Answer 2

If you have the same great grandmother you're second cousins.

Answer 3

If you share two grandparents you are first cousins.  If you share two great grandparents you are second cousins.  However, you say you share only one of your eight great grandparents, so you are half-second cousins.

Answer 4

fourth cousins.