Looks like kjnengr may be the winner with:
Linguistically
Unless someone can come up with a 15 letter word beginning with y.
Game over in 24 hrs., unless another correct response.
Remember, no cheating. Cheating proves nothing, except to boost your own ego.
Was a quick game, wasn't it.
I'll try to come up with something different, but not everlasting.
Thanks to all for playing.
Maybe:
Linguistically