I like to use the word origins. Supernatural meaning outside the laws of nature and not amenable to scientific study. Paranormal meaning beyond normal but we might yet figure it out. But to communicate, we must acknowledge that the terms are variably and inappropriately used.

Communication is important but it is better off being precise if that's an option.

There are no set gatekeepers in ghost studies or paranormal investigation. So things have drifted madly. I don’t see much point in insisting things must be “this” way when there is no established rules to count on.