The vast majority of words in natural languages aren’t created by somebody like an invention. They slowly form over time and over populations. In fact, I don’t think any of the words in your comment were “coined” in the sense that, say, Shakespeare coined “dwindle”.

Just like species change, I suppose for any precise definition and pronunciation of a word, you could find a person who was the first to use it, but it would almost always be a tiny variation of an existing word, and wouldn’t be considered “new” to a native speaker at that time and place, just a mild accent.