sesqui-cousin-aunt

Daughter of their grandparent’s half-sibling with the other grandparent’s full sibling.

My sesqui-cousin-aunt is a good person.

sesqui-third-cousin

Sesqui-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and three great-great-grandparents in common.

My sesqui-third-cousin is a good person.

sesqui-cousin-nephew

Sesqui-first cousin’s son.

My sesqui-cousin-nephew is a good boy.

sesqui-great-cousin-niece

Sesqui-first cousin’s granddaughter.

My sesqui-great-cousin-niece is a good person.

sesqui-cousin-niece

Sesqui-first cousin’s daughter.

My sesqui-cousin-niece is a good person.