There's something interesting -- and a little sad -- going on
here with respect to language evolution. Just about everyone has
heard of Wikipedia by now, but most people don't know where the
name comes from. So they're apt to seize on the wrong part of
the word when creating derived terms. More and more we're seeing
the stem "pedia" used to mean "an open, collaborative repository
that anyone can quickly and easily edit". Sorry, Ward.