paternity definition by American Heritage Dictionary
The state of being a father; fatherhood.
Descent on a father's side; paternal descent.
of or relating to a lawsuit brought by a woman attempting to establish that a particular man is the father of her child and so must provide the child with financial support: paternity case; paternity suit.
Origin: Middle English paternite, from Old French, from Late Latin paternitās, from Latin paternus, paternal; see paternal.