Source : Webster's Revised Unabridged Dictionary (1913)

Nubia \Nu"bi*a\, n. [From L. nubes cloud.]
   A light fabric of wool, worn on the head by women; a cloud.

Source : WordNet®

Nubia
     n : an ancient region of northeastern Africa (southern Egypt and
         northern Sudan) on the Nile; much of Nubia is now under
         Lake Nasser