What I meant was I know daemon as a computer term, so it tends to get used in cyberpunk. It's an old term for, without looking it up (so I'm not sure if it's 100% accurate but it's my understanding), a program that runs in the background, like a service rather than a user-facing application.

Though, I wouldn't be surprised if the English word "demon" comes from the Old English "daemon" in much the same way that today's English (British) people say "encyclopaedia" or "paediatrician"; American English drops one of the two vowels and English keeps them, whereas once the letters were fused (I'm not sure what the term is).

Anyway, thanks for the recommendation.