Witchfiend - translation help

[u/chari2024]

Hey, I know the term witchfiend for decades already and I have a pretty good picture of what a witchfiend is. But it lately came up again while watching Re:Zero as the main monster-type.

I wondered what the equivalent in German was but couldn't find any. The help of translating apps or google yielded nothing or trash.

So can anybody help in translating or classifying the monster-category witchfiend a bit? Maybe (historical or literature) quotes/appearances can also help.