This is very general, and I'm afraid it doesn't really fit into any one category

[Psychospacecow]

https://www.reddit.com/r/etymology/comme...e_does_it/


So, this popped up in my Reddit feed, and it appears that the concept of mana comes from Pacific Islanders, where it literally meant "personal power".

https://en.wikipedia.org/wiki/Mana

I know this isn't a very good source, but if the site ever decides to do something over classic D&D style games or something else where mana started showing up, it could be worth looking into.