Is the English Language Changing?

[zirp]

yes, but not in the way you are describing. New words are added to talk about things that didn't exist a few decadeds ago, and it's also changing because demagogues manipulate it. Look at seemingly clear american words like "liberal" and "libertarian" they had completely different meanings a century ago.
Back then, liberals tried to free people from the power(abuse) by government (often kings) and clergy. Libertaires were anti-capitalist leftwing anarchists.

Some people claim that every language always will and has to change, but they are wrong. Aymara hasn't needed to adopt new words for centuries. Latin hasn't done so either, but that's because of a vatican decree