Actually, tempus, you do bring up an interesting question about language change. Word usage can indeed change from just one generation to the next with older folks not really noticing. It presents no barrier to communication, but you do make a point. I'm not sure how valid your point is in this particular case, but it does remind me of something similar. My second language is German, which is why I'm here, to use the community tutors just for informal chat in German. And, the other day I was listening to a 20-year old interview of the late former German Chancellor, Helmut Schmidt, who served in the mid- 70s to early 80s in office. He was born in 1928 in Hamburg. He used a German word that means "request" or "ask" in the interview, one I hadn't heard before, rather than one that is heard more commonly to say the same thing. So, I asked one of the native speaker German community tutors about the word, and she looked at me funny and said, "Oh that is REALLY OLD." There's an online dictionary, LEO, which is great for German and about 7 or so other languages, and within the program it tells you on some words their use- frequency. On the word I was looking up that was so old, as the tutor described, they had this graph showing the use of the word from about 1700-2000 and showing how often the word was used in the past and how often it is used today. That particular word peaked around 1900 but has been in decline since, taking a real nose dive after about 1950. I found the use of that particular word Schmidt used so rare today, that the word I would have expected to hear, was used well over 100 times more frequently than the older one. So, these are really useful tools. I tell people here sometimes to avoid certain words, because they are so out-of-date, and you really don't want to sound like you're out of the 19th Century in the words you use in any language.