1- Great-great-grandparent's sibling's grandchild / Grandparent's second-cousin.
2- Grandparent's sibling's great-great-grandchild / Second-cousin's grandchild.
My second-cousin-twice-removed is a good person.
1- Grandparent's second-cousin.
2- Second-cousin's grandchild.
second-cousin-twice-removed.
Tenth-cousin-nine-times-removed (10C9R).
My tenth-cousin-9X-removed is a good person.
1- First-cousin-thrice-removed's spouse.
2- Spouse's first-cousin-thrice-removed.
My first-cousin-thrice-removed-in-law is a good person.
Grandparent's female second cousin.
My second great-cousin-aunt is a good person.
1- Child of uncle (father's brother) and of aunt (mother's sister) at the same time.
2- Child of uncle (mother's brother) and of aunt (father's sister) at the same time.
3- Someone who, in relation to others, has zero parents and four grandparents in common.
1- Child of parent’s full sister and of other parent’s full brother at the same time.
2- Child of paternal aunt (father's sister) and of maternal uncle (mother's brother) at the same time.
3- Child of maternal aunt (mother's sister) and of paternal uncle (father's brother) at the same time.
4- Nibling (biological) of mother and of father at the same time.
5- Two parents's nibling.
6- Person who, in relation to the other person, has zero parents and four grandparents in common.
7- Double-first-cousin.
8- Double-1C.
My double-cousin is a good person.