Literally ignore the other people. They clearly don't know what they're talking about, though anise is at least close. The name Lucifer originally referred to Venus, the morning star. It comes from Roman Latin, long before Christianity was a thing, and literally just means light-bringer. The Hebrew name for Venus is mentioned a single time in the bible, referencing a Babylonian king who was given the title. You can probably thank St. Jerome for replacing the Hebrew name for the planet with "Lucifer", but I'm not certain on that one. I'm not a scholar of mediaeval church Latin. Never, not once in the bible, is Lucifer conflated with the devil. In fact, even the original Satan was called the Adversary not because he was YHWH's adversary, but because he was effectively God's District Attorney, prosecuting the wrongs of mortals. The entire conflation with Satan as evil happened between the recording of the Hebrew bible and the development of Christianity. Hence why Satan is pretty much only mentioned in the New Testament.

Pretty much every single thing modern Christians believe about the devil, or especially hell, was made up in the middle ages, and a hefty amount of that by Dante alone.

I recommend reading the wiki pages for both, since they're interesting reads, but you should definitely check me on this. Don't take my word for it.

https://en.wikipedia.org/wiki/Satan https://en.wikipedia.org/wiki/Lucifer

Check their earliest histories.

E: forgot to mention that Milton was another one of the people who made up large portion of the modern idea of "hell", which was originally a term from old Norse, and so he and Dante basically combined the Norse He'll and the Greek Hades to make "Hell" as we know it today, complete with the Lord of Hell. It's all syncretism.