system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 How did "Curse Words" come to exist.
gpt
Humans have been swearing for almost as long as we've been able to talk. We don't entirely know, but the theory is that we needed words to describe potentially sensitive or gross things, and that people started associating those words with sensitive or gross ideas, and, eventually, they came to be used to refer to other people in a hurtful or gross way.

A perfect example of this is the word "shit", which comes from the Old English word "scitte", and the German word "scheissen", which means "to have diarrhea". The Oxford English Dictionary notes that the word was originally just used to describe diarrhea, and was perfectly neutral. It's a really recent thing to have that particular word be used in an offensive way.