second great-great-cousin-uncle

Great-grandparent's male second cousin.

My second great-great-cousin-uncle is a good person.

second great-cousin-pibling

Grandparent's second cousin.

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

second-cousin-1X-removed

Second-cousin-once-removed (2C1R).

My second-cousin-1X-removed is a good person.

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.

sesquaple-second-cousin

Sesquaple-2C: Person who, in relation to the other person, has zero parents, zero grandparents and seven great-grandparents in common.

My sesquaple-second-cousin is a good person.