Quote Originally Posted by eadingas
The Nazis were morons, not scientists. They invented words and invented their meanings to suit their use. And "Aryan" meant to them whatever they wanted it to mean. When they needed alliance with Turkey, Japan or Romania, they expanded the meaning to include those people in it somehow. Basically, "Aryan" came to mean "Not Jewish" or, more broadly, "Not of the people we don't like for some reason".
Well, really, isn't that how all words come about? Words mean what those who make them and use them want them to mean.