first co-cousin-nephew-in-law

The grandson-in-law of one's parent-in-law's sibling.

My first co-cousin-nephew-in-law is a good person.

double-first great-cousin-nephew

Son of their maternal first cousin’s child with the paternal first cousin’s child or double-first cousin’s grandson.

My double-first great-cousin-nephew is a good person.

half-first great-cousin-nephew

Half-first cousin’s grandson.

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

sesqui-first great-cousin-nephew

Sesqui-first cousin’s grandson.

My sesqui-first great-cousin-nephew is a good person.

first cousin-nephew

First cousin's son.

My first cousin-nephew is a good boy.

sesqui-first cousin-nephew

Sesqui-first cousin’s son.

My sesqui-first cousin-nephew is a good boy.

first great-great-cousin-nephew

First cousin's great-grandson.

My first great-great-cousin-nephew is a good boy.