The nakedness of thy father’s wife’s daughter, begotten of thy father, she is thy sister, thou shalt not uncover her nakedness.

Or your father's wife's daughter, the child of your father, for she is your sister.

Ασχημοσυνην θυγατρος της γυναικος του πατρος σου, γεννημενης απο του πατρος σου, ητις ειναι αδελφη σου, δεν θελεις αποκαλυψει την ασχημοσυνην αυτης.

The nakedness of thy father’s wife’s daughter, begotten of thy father, she is thy sister, thou shalt not uncover her nakedness.