The Egyptian Book of the dead by P. Le Page Renouf and Edouard Naville

3. _Coverer_ ⁂⁂⁂, a name applied both to the Nile, as covering

the land during the inundation, and to the Sky as the covering above us. _Cf._ my paper on _Nile Mythology_, P.S.B.A., November, 1890.