Derived from Greek νηρος (neros)
meaning "water". In Greek myth
this was the name of a god of the sea, the father of the Nereids. It is mentioned briefly in the New Testament
, belonging to a Christian in Rome. This was also the name of a Roman saint
of the 1st century, a member of the army, who was martyred with his companion Achilleus because they refused to execute Christians.