I think the same way about droll as I do begs the question.[1]

I don't see the point of insisting the original/archaic meaning of a word is 'correct' if, in the English-speaking world we live in today, essentially nobody uses it or understands it in that sense.

[1] I certainly do not think the same about nonplussed, however. I've never heard that word being used for unimpressed before, but it appears to be simply an Americanism; one I hope never catches on elsewhere.

http://www.oxforddictionaries.com/definition/english/nonplus...