half-cousin

Parent's half-sibling's child; the relative who has with the other person only one grandparent in common, but parents are different.

My half-cousin is a good person.

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.

second-cousin-once-removed

1- Parent's second-cousin.
2- Second-cousin's child.

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

second-cousin-once-removed

1- Great-grandparent's sibling's grandchild / Parent's second-cousin.
2- Grandparent's sibling's great-grandchild / Second-cousin's child.

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

second-cousin-once-removed

1- Parent's second-cousin.
2- Second-cousin's child.

second-cousin-once-removed.