double-half-niece

1- Daughter of maternal half-sister and of paternal half-brother at the same time.
2- Daughter of paternal half-sister and of maternal half-brother at the same time.

My double-half-niece is a good person.

double-half-uncle

1- Half-brother of mother and of father at the same time.
2- Son of maternal grandmother (mother's mother) and of paternal grandfather (father's father) at the same time.
3- Son of paternal grandmother (father's mother) and of maternal grandfather (mother's father) at the same time.
4- Two parents's half-brother.

My double-half-uncle is a good person.

double-half-uncle

1- Half-brother of mother and of father at the same time.
2- Son of maternal grandmother (mother's mother) and of paternal grandfather (father's father) at the same time.
3- Son of paternal grandmother (father's mother) and of maternal grandfather (mother's father) at the same time.

My double-half-uncle is a good person.

sesqui-first-cousin

1- Child of parent’s full sister and of other parent’s half-brother at the same time.
2- Child of parent’s full brother and of other parent’s half-sister at the same time.
3- Person who, in relation to the other person, has zero parents and three grandparents in common.
4- Sesqui-cousin.
5- Sesqui-1C.

My sesqui-first-cousin is a good person.

double-half-nephew

1- Son of maternal half-sister and of paternal half-brother at the same time.
2- Son of paternal half-sister and of maternal half-brother at the same time.

My double-half-nephew is a good person.

double-half-pibling

1- Half-sibling of mother and of father at the same time.
2- Child of maternal grandmother (mother's mother) and of paternal grandfather (father's father) at the same time.
3- Child of paternal grandmother (father's mother) and of maternal grandfather (mother's father) at the same time.
4- Two parents's half-sibling.

My double-half-pibling is a good person.

sesqui-cousin

1- Child of their parent’s full sibling with the other parent’s half-sibling.
2- Person who, in relation to the other person, has zero parents and three grandparents in common.
3- Sesqui-first-cousin.
4- Sesqui-1C.

My sesqui-cousin is a good person.