Comment by AnimalMuppet

The original ones, in Germany. It was short for "national socialist" - that is literally where "Nazi" comes from. They were different from the communists in that they were national rather than international socialists.

At least, that's what it said on the tin. Not sure, once they got into power, how actually socialist they were. (On the other hand, once the communists got into power, I'm not sure how communist they actually were.)