Probably of foreign origin; Nisan, the first month of the Jewish sacred year -- Nisan.
H5212. Nisan
נִיסָן proper name of 1st month (loan-word from Babylonian Nisannu, compare SchrCOT Nehemiah 1.. 1 Muss-ArnJBL xi. 1 (1892). 76; Late Hebrew = Biblical Hebrew; so Nabataean, Palmyrene, see Lzb323); — only post-exile: נ ׳חֹדֶשׁ Nehemiah 2:1; Esther 3:7 ( + הַחֹדֶשׁ הָרִאשׁוֺן), = pre-exile הָאָבִּיב (הֹדֶשׁ). — On sacredness of Nisan compare also RSSemitic i. 387; 2d ed. 406 f.
נִיצוֺץ see נצץ. נֵיר see נֵר.