So by that logic either god made them up or the devil made them up. Ergo they were made up.

Presumably based on the arguments so far narcissist is a word from the devil? If that’s your stance it that would be very fitting because it would probably be an apt adjective for him.

Since we seem to be heading towards an etymology lesson maybe you would care to enlighten us about some other words from the devil so we can steer clear of them.