When I saw this word for the first time up on the lists I presumed it was some sort of puzzle and that the missing letters formed a word. Some clever attempt by Helen to test we-of-the-bigger-brains. Alas, no. That gives us dfjkmqsvwxz.

As for this being a 'real' word. I doubt it. No references anywhere to it and it is quite a stupid and lazy attempt by someone to coin a new word using letters once in alphabetical order. But there's something in that idea.......