Third-cousin: great-grandparent's full sibling's great-grandchild. Has among themselves; different two parents, different four grandparents, different eight great-grandparents, two great-great-grandparents in common and different fourteen great-great-grandparents.
Half-third-cousin: great-grandparent's half-sibling's great-grandchild. Has among themselves; different two parents, different four grandparents, different eight great-grandparents, one great-great-grandparents in common and different fifteen great-great-grandparents.
Sesqua-second-cousin: has among themselves; different two parents, different four grandparents, seven great-grandparents in common and different one great-grandparent.
Triple-second-cousin: has among themselves; different two parents, different four grandparents, six great-grandparents in common and different two great-grandparents.
Sester-second-cousin: has among themselves; different two parents, different four grandparents, five great-grandparents in common and different three great-grandparents.
Double-second-cousin: has among themselves; different two parents, different four grandparents, four great-grandparents in common and different four great-grandparents.