Icthus: The Earliest Christian Symbol.

The Greek spelling for ichthus is -- These are the first letters of the Greek words Iesous (Iota), Christos (Chi), Theou (Theta), Uios (Upsilon), and Sotor (Sigma). The English translation is IXOYE. The five Greek word stand for the English words meaning, "Jesus Christ, Son of God, Saviour" or "Jesus Christ God's Son Saviour".