"Second cousin once-removed" i believe, that's what i call mine :)
Cousine
second-cousin
Second cousins
Your niece and your daughter are first cousins. Your niece's daughter and your daughter are first cousins, once removed.
This is the way it goes: Your fathers elder brother is YOUR Uncle,his grand daugher is YOUR first cousins daughter. So this grand daughter who is your first cousins daughter would be YOUR SECOND COUSIN.
Your niece and your daughter are first cousins. Your daughter and the daughter of your niece are first Cousins, once removed.
your auntie.. your sisters father is your dad..your dads brother is your uncle..your uncles daughter is your cousin and your cousins mother is your auntie:)!
The children of siblings are first cousins, so your daughter and your brother's daughter are first cousins to each other.
Your cousin's daughter is your first cousin once removed. Your daughter and your cousin's daughter would be second cousins.
Your daughter and your niece are first cousins. Your daughter than your niece's son are first cousin's once removed. Your daughter's child and your niece's child are second cousins to each other.
Your daughter and your nephew are first cousins to each other. Your daughter and your nephew's son are first cousins, once removed, to each other.
Cousins