From nadad; properly, rejection; by implication, impurity, especially personal (menstruation) or moral (idolatry, incest) -- X far, filthiness, X flowers, menstruous (woman), put apart, X removed (woman), separation, set apart, unclean(-ness, thing, with filthiness).
see HEBREW nadad
H5079. niddah
נִדָּה noun feminine impurity (as abhorrent, shunned); — absolute ׳נ Ezekiel 18:6 +; construct נִדַּת Leviticus 12:2 +; suffix נִדָּתָהּ 12:5 +; — impurity (especially P and Ezekiel):
1 of ceremonial impurity, as union with brother's wife, Leviticus 20:21; especially of menstruation Ezekiel 18:6 (read בְּנִדָּתָהּ אִשָּׁה for ᵑ6 ׳א נִדָּה ᵑ0 Co), הַנּ ׳טְמֵאַת 22:10, compare 36:17, דְּוֺתָהּ נִדַּת Leviticus 12:2, compare 12:5; 15:19-20, 24, 25 (׳עֶתנִֿדּ), (3 t. in verse), 15:26 (נִדּ ׳מִשְׁכַּב), 15:26 (נִדּ ׳טֻמְאַת), 15:33; 18:19; of defilement contracted by contact with a corpse, (הַ)נִּדָּה מֵי water of impurity (i.e. to remove it, compare Di) Numbers 19:9, 13, 20, 21 (twice in verse); 31:23.
2 figurative (with allusion to cerem. usage), impure thing, Ezekiel 7:19-20, (of gold), Lamentations 1:17 (of Jerusalem); of idolatry, immorality, etc., 2 Chronicles 29:5; Ezra 9:11 (נִדָּה אֶרֶץ), 9:11, Zechariah 13:1 (וּלְנִדָּה לְחַטַּאת).