sesqui-first cousin-aunt
Daughter of their grandparent’s half-sibling with the other grandparent’s full sibling.
My sesqui-first cousin-aunt is a good person.
sesqui-first great-cousin-aunt
Daughter of their great-grandparent’s half-sibling with the other great-grandparent’s full sibling.
My sesqui-first great-cousin-aunt is a good person.