If you mean the "N" word, I believe there are two or more theories, but I do not know them well. I think one of them has its roots in the Spanish language, but I could be mistaken. Etymology could help you. \n\nScroll down these pages.\nhttp://www.etymonline.com/index.php?l=n&p=4\n\nhttp://www.wordorigins.org/wordorn.htm#Narc