This sounds like a rather odd question so let me explain.
I was reading some youtube comments where someone got told off for using the word 'womanizer' because apparently it's so outdated and no one uses that anymore. And now that I think about it, it is so true. People will say things like 'ladies' man,' 'cheat' or player these days. There are of course more but these are just the ones I can mention. I can't remember the last time I heard someone described as a 'womanizer.'
But it got me thinking about words that we all used at one time but now seem to have vanished. Of course some of them are no longer used because it's not considered part of polite conversation any more.
One I can think of is 'lame' which we used to use when something wasn't good. I can't remember when that one died out but I think it's safe to say it will most definitely not be making a comeback for obvious reasons! And 'wicked' and 'groovy' well nobody uses them any more and they really do sound dated.
I'm trying to think of the words we used a lot when I was growing up. I know people still say wicked but not as much as they used to. And bad which meant good. I'm not sure if anyone says phat anymore either which also means good. Oh we used to call people a dufus when they were being an idiot. That's one I haven't heard in ages.