half-cousin

Parent's half-sibling's child.

My half-cousin is a good person.

half-cousin

1- Half-pibling's child.
2- Living being that has zero parents and one grandparent in common with another living being.

Half-cousin.

half-first cousin-niece

Half-first cousin's daughter.

My half-first cousin-niece is a good girl.

half-great-cousin-nephew

Half-first cousin’s grandson.

My half-great-cousin-nephew is a good person.

half-cousin-aunt

Parent's female half-first cousin.

My half-cousin-aunt is a good person.

half-great-cousin-pibling

Grandparent’s half-first cousin.

My half-great-cousin-pibling is a good person.

quadruple-half-cousin

1- Child of double-half-aunt (daughter of maternal grandmother and of paternal grandfather) and of double-half-uncle (son of paternal grandmother and of maternal grandfather) at the same time.
2- Child of double-half-aunt (daughter of paternal grandmother and of maternal grandfather) and of double-half-uncle (son of maternal grandmother and of paternal grandfather) at the same time.
3- Person who, in relation to the other person, has zero parents and four grandparents in common (in different manners that the double-first-cousin).
4- Quadruple-half-first-cousin.
5- Quadruple-half-1C.

My quadruple-half-cousin is a good person.