What words have people stopped using?

I have noticed that when I ask for flatware (in a restaurant!) more often than not the waiter has no idea what I am talking about. Has that word disappeared? They say silverware for all flatware?

What words can you think of that were a regular part of the English language, and now get a blank stare when you use them?

If we can I want to stay away from words that I consider trendy like groovy (I use it) and stick with more main stream standard language. But, when in doubt go ahead and let us hear it.

Another one is pocket book. I do still hear it in NY sometimes, and in my family, but I don’t think young people use the term. Would they know what I am talking about? What about nursery school? Some parts of NY still use that too, but I don’t think my niece and nephew would have any idea what it is. They are in their late teens early 20’s.