Dude, don't tell me what I am finding and not finding in the dictionary, when what you are saying is contradicted by the direct and immediate evidence of my own eyes.  Root س و د (from which words meaning "black" in the sense of an abstract color are derived) is defined on page 513 of the dictionary, while root ز ن ج (whose historically-changing range of meanings I have adequately explained in past comments on this talk page above) is defined on pages 445-446 of the book.  These entries are over 50 pages apart in the dictionary.

I'm perfectly happy to add a formal reference to the Dictionary of Modern Written Arabic in this article, but the process is not facilitated by you telling me things which I know are factually false.

And I was the one who told you several times above the information about the three-fold distinction of the early Arabs between nubah النوبة, ħabaš الحبش, and zanj زنج.  Usually, the inhabitants of nubah and ħabašwere not called Zanjis by Arabs (though occasionally they were), but when other areas of Africa (beyond the northeast Nile and coastal areas) later came into the gographical horizon of the Arabs, the inhabitants of those areas were often called Zanjis or Zunūj.