Osiris is the Egyptian Lord of the Underworld and Judge of the Dead, brother-husband to Isis, and one of the most important gods of ancient Egypt. The name `Osiris' is the Latinized form of the Egyptian Usir which is interpreted as 'powerful' or 'mighty He is the first-born of the gods Geb (earth) and Nut (sky) shortly after the creation of the world, was murdered by his younger brother Set, and brought back to life by his sister-wife Isis. This myth, and the gods involved, became central to Egyptian culture and religious life. Osiris was originally a fertility god, possibly from Syria (though this claim is contested) who became so popular he absorbed the function of earlier gods such as Andjeti and Khentiamenti, two gods of fertility and agriculture worshipped at Abydos. He is associated with the djed symbol and is often depicted with black or green skin symbolizing the fertile mud of the Nile and regeneration. He is also frequently shown as a mummy or in partially mummified form in his role as Judge of the Dead.