The two crossword solutions for the term 'Egyptian God of Lower World' are Serapis (7 letters) and Osiris (6 letters). Serapis was a syncretic god, combining aspects of Greek and Egyptian gods. He was worshipped in the Greco-Roman world as a god of the underworld. Osiris was an ancient Egyptian god, usually depicted as a green-skinned man with a pharaoh's beard, wearing a crown with two large ostrich feathers at either side. He was the god of the underworld, death, and resurrection.