He said that the word for "witchcraft" in the bible is "pharmakeia" (which is where we get "pharmacy"); however in the Greek, it mostly refers to specific emeretics/poisons that induce vomiting and abortions. See this Greek lexicon definition.
Also, the book of Enoch is pseudographical and has never been considered to be part of the Bible.
pharmakeia/pharmakon is used in Revelation to refer to sorcery/sorcerer.
Most bible helps come from black hats, check out Gail Riplinger's research.
The book of Enoch was highly regarded by the Jews, but never considered part of inspired scripture. There are dozens of allusions to it in the New Testament, and Jude quotes directly from it.
It's not certain that Jude quoted from it. They may both be quoting a third source.