The design and evolution of words is indeed very interesting. I dunno how's it in the english language but in german we have the 'problem' - or better the inevitable advancement called "angliciziation". (many thx inter allia to the advertisment industry)
Every year there is also a list of words published by some institute. These words are called "the dying words". Words that no one uses anymore because they don't fit in the 21st century anymore (or whatever).
Some studies about this interesting topic made it colorful and clear for me.
I even found some words on the lists - I use - and which are threatened and it was a little bit scary. Before, I didn't even noticed that words can or even will die and extinct forever.
Maybe in the english language this 'problem' isn't that big as the language itself is imo a little bit "general". Not that precise and incisive compared to the german. It is maybe the biggest advantage of this language that helps it to survive almost everywhere. But on the other side it is used by almost everyone and perhaps it will be changed in a wide bigger range someone can imagine.
So it is up to us to use threatened words so they can survive. Or to create some new ones. I prefer both options. Everything is part of the big river of change. Words and languages are an important part of it which represent ourselves, our way of life and much more you can't even imagine.
Some things will allways be forgotten and/or hidden but carried by words through the time. That's the way it is.
So, choose and use your words carefully and wise then at least some part of you will survive
