נִדָּה

niddâh. from נָדַד; properly, rejection; by implication, impurity, especially personal (menstruation) or moral (idolatry, incest); [idiom] far, filthiness, [idiom] flowers, menstruous (woman), put apart, [idiom] removed (woman), separation, set apart, unclean(-ness, thing, with filthiness).