half-nephew

Half-sibling's son.

My half-nephew is a good person.

half-nephew

Half-sibling's son.

Half-nephew.

co-cousin-nephew-in-law

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

My 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.

double-half-nephew

Son of a paternal half-sister with maternal half-brother or son of a maternal half-sister with paternal half-brother.

My double-half-nephew 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.

first great-great-cousin-nephew

First cousin's great-grandson.

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