What's in a name?

An Economist article discusses the strange turns the term "liberal" has taken. In the US, it has become an insult against the left. As a result, the left seeks to use the term "progressive." The Economist wants to restore it to its orginal meaning, something akin to "libertarian."

Meanwhile, a Reason article describes how some egalitarian types are using that term, calling themselves "left libertarians." The ideas described in the article don't sound very coherent, though.