quadruple-half-first-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-cousin.
5- Quadruple-half-1C.

My quadruple-half-first-cousin is a good person.

sesqui-fourth-cousin

Sesqui-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and three great-great-great-grandparents in common.

My sesqui-fourth-cousin is a good person.

fifth-cousin-10X-removed

Fifth-cousin-ten-times-removed (5C10R).

My fifth-cousin-10X-removed is a good person.

step-second-cousin-once-removed

1- Stepparent's second-cousin.
2- Parent's step-second-cousin.
3- Step-second-cousin's child.
4- Second-cousin's stepchild.
5- Step-2C1R.

My step-second-cousin-once-removed is a good person.

half-first-cousin

Half-cousin or half-1C:
1- Parent's half-sibling's child.
2- Person who, in relation to the other person, has zero parents and one grandparent in common.

My half-first-cousin is a good person.

half-first cousin

Parent's half-sibling's child.

My half-first cousin is a good person.

half-first-cousin

1- Half-pibling's child. / Parent's half-nibling.
2- Person who, in relation to the other person, has zero parents and one grandparent in common.
3- Half-cousin.
4- Half-1C.

My half-first-cousin is a good person.