Save Gender Masculine Usage Greek Mythology Scripts Νεῖλος(Ancient Greek) Other Forms FormsNilus Meaning & History Means "river valley". From the Greek neilos (νεῖλος) 'river valley'. In Greek mythology he is the eponym god of the river Nile in Egypt, the son of Titans Oceanus and Tethys, and father of Memphis, Chione, Anippe, Caliadne, and Polyxo.