|OOC||The name, Aion, could be a reference to a minor Anatolian deity in classical times, which Wikipedia says is considered to be another form of Osiris-Dionysus, or a book by Carl Jung, Aion: Researches into the Phenomenology of the Self, which was also a reference to the same deity, or both, or nothing at all.
The word AION, from greek, originally meant "ever-flowing", with a heavy emphasis on time or eternity. This would make translations of "ever-flowing through time", "fountain of life", and, more significant to us, "fountain of immortality" reasonable.
AION also is given definitions of The World, or multiple worlds, especially "a multiplicity of 'worlds' or spheres of experience, all of which are coexistent." This last interpretation would seem to very aptly describe a modern MMO, where many copies of the same world (servers) are played simultaneously.
Wikipedia says, "The word aeon, also spelled eon or Ã¦on, means "age", "forever" or "for eternity". It is a Latin transliteration from the koine Greek word á½ Î±á¼°ÏŽÎ½ (aion), from the archaic Î±á¼°ÏÏŽÎ½ (aiwon)."