The way we write and speak today would have made people living in the 17th century, never mind Neanderthals, think us aliens from a far off galaxy. Things change, culture changes, languages are born and die, names come and go – today's "Google" is not your grandfather's "International Business Machines."
If you're looking for stability, go somewhere else. Language is on the move. It is a living, breathing organism, always changing, morphing, evolving. Don't fear this change – revel in it.