niddah (Hebrew #5079)
properly, rejection; by implication, impurity, especially personal (menstruation) or moral (idolatry, incest)
KJV usage: X far, filthiness, X flowers, menstruous (woman), put apart, X removed (woman), separation, set apart, unclean(-ness, thing, with filthiness).
Pronounce: nid-daw'