Good morning, Tony, Chrise and RE. The hyphenated version is actually a sub-headword in my paper and cd versions of Chambers.
And, Tony, how many times have I done the same thing? Many!
Again, I'm surprised. You folk seem to be able to tackle what I thought the most difficult one, with ease.
Off to the nearest village now. See you later.
PS. I really shouldn't be surprised. I remember the days when one opened this site and found several "O replies" awaiting answer. Nowadays, even the most difficult queries submitted are answered very quickly indeed. Just shows the level of expertise of the people attracted to the forum.