What is drow?

Some articles on drow:

Pharaun Mizzrym - Z - Zaknafein Do'Urden
... While drow males are expected to be subservient to the females and can be punished for the smallest slight, Zaknafein was shown to be very rebellious and free-willed ... who attempted to refute the evil of drow elves ... He saw the cruelty of the drow, but could do little to stop it, apart from mercy killings ...