Deus Ex...the full phrase being "Deus Ex Machina", meaning God out of a machine. Originally it was used in ancient Greek drama when a crane or similar object would be used to, for example, carry an actor out of the danger that egh was faced with in the play, or to give a hero a weapon hen his broke. It was basically a mechanism to explain things like divine intervention. When I first heard the phrase, it was after I had finished playing Deus Ex, and so my first thought was that it was related to Deus Ex...
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Because of the super-intelligent computer AIs Daedalus and Helios, who later form into the "super-program" by the name of Icarus (I may have gotten Icarus and Helios confused, ironic though, Greek mythology had Helios as god of the Sun, and we all know what happened to Icarus.
Soon after I realized the true meaning (as an explanation for divine intervention in Greek drama), but I still happen to like my original thoughts on it. I consider it a neologism, but that may be my ego getting the better of me.