The Cross of St. Peter or Petrine Cross is obvious and naturally pre dates the common theme of twisting the meaning of ancient symbols (e.g. upside down cross anti christian)
Pronounced JOO-pi-tər - like Jupiter
From Latin Iuppiter, which was ultimately derived from the Indo-European *Dyeu-pater, composed of the elements Dyeus (see ZEUS) and pater "father". Jupiter was the supreme god in Roman mythology. He presided over the heavens and light, and was responsible for the protection and laws of the Roman state. This is also the name of the fifth and largest planet in the solar system. ( ties into Zeus, Odin, Thor.)