Idiomwatch: Begs the Question

In modern usage, "begs the question" is "misused" more often than used in its correct/traditional meaning. Until recently, I was among the guilty. I, too, believed it means "begs (for) the question (to be posed)." I came to know that was incorrect (though I still think it has a lot of merit and utility). But I still did not realize the correct definition. I thought the real definition was "begs (off) the question", though I see now that doesn't quite fit, since begging off is active, versus passively trying to avoid the question. Wikipedia does note this usage.

The Wikipedia examples of the logical fallacy are not usages I commonly see.