alphabetical... end your word/name/whatever in X from A-Z
Ajax - a Greek hero or something my mum used in the kitchen
Botox- highly toxic but used in minute doses both to treat painful muscle spasms, and as a cosmetic treatment in some parts of the world.
Crux - the most critical part of the argument, or
the hardest section of a climb
Desex - I believe poor old Clyde is desexed, but only partially I guess 
if we get stuck on a letter, either use a proper name or pass on!
Essex 
the place, not the singer
Filofax, the ultimate yuppie accessory!
Gollox
I can't find it in the dic but I am sure it must be a word and anyway it moves us on 
Hoax
Ilex
Jinx - my jukebox is jinxed!
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