Buyer beware: this is exactly the same book (except for title) as "Weird and Wonderful Words", which is listed here as being by Simon Winchester but in fact is also by Erin McKean. It's an enjoyable book, but you wouldn't want to buy it twice thinking you were getting a sequel.
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CORRECTION:
My apologies to the beleaguered author - a more careful re-examination of the introduction does indeed disclose that this is a combination of the two previous books, and I'm sure it does include the additional new words. When I first opened it up, all the entries I looked at were repeats, so I jumped to a hasty conclusion.
I do think, though, that online buyers need an advisory on this, as some others might otherwise make the same mistake I did, of thinking that this one is a third book "totally" different from the first two.