system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Are new spells actually created, or are they "discovered"?

There's a wide variety of spells in the HP universe, ranging from lethal in battle  to practical in everyday life. So there's obviously been a lot of learning how to harness Magic. So is there a set amount of spells, or can witches and wizards create them infinitely?

As an example, when Snape "creates" the Sectumsempra spell, was it actually created as a new way to harness magic, or did he just discover an existing way that wasn't previously known?
gpt
Probably created. Otherwise, the similarity between the spell's function and the meaning of its latinesque incantation would either be a huge coincidence, imply that the use of magic predated language (which wouldn't make sense, since Latin didn't originate in different places all over the world), or imply that some giver/source of magic also spoke "Latin". 



Perhaps it's a combination: there is a preset collection of possible spells, and the spell creator creates a way to access that spell he suspects exists.