but the Jews don't believe the Christian trinity to be their god, the christan part is an addition that to them is false so if the Christian one is right they're wrong.
same for the Muslims.
There are a fair few Christians that don't believe in the Trinity either. That really doesn't mean to much however, the discussion is on the Devil and Hell, and in thses thing the three religions are of a similar mind.
each book supersedes the previous one.
So they are inextricably linked then.
Except Christians believe that god is also Jesus the others do not, that is a fairly fundamental difference in the god.
Except that even the Christians can't agree on that either. Christians believe Christ was the Son of God, not necessarily that he was God. Trinitarianism is simply one interpretation of Biblical scripture (a widely held one).
However it has little to do with the relative etymology of the Devil/Hell/Purgatory etc that the OP was referring to.
In fact the commonly help conception of Hell is a mixture of many different religious sources which have been concocted together by both modern and medieval fiction media. So any discussion on the subject really needs to take in all the sources of that to be truly representative.
it's pretty much a certainty though the op is talking about the Christian devil.
Even if that is True, the Christian Devil is the same as the Islamic one and the same as the Judaic one.
From the threads premise, it's going to be the coe/catholic interpretation.
Which interpretation, as the Catholic one is far different for the CofE one, and other Protestant Churches have different interpretations as well...
How specific do you wish to be?
please tell me how Wicca answers
Well, Wicca is a mixture of different beliefs and practices, some polytheistic, some Monotheistic, some duotheistic, some even atheist, so you would need to be more specific.
Given the more widespread ideology of dualism, I suspect that they would see the Devil in a dualism way. A dark side balancing the Light, as they have no specific Devil entity, they believe that their Godhead is both Light and Dark, and it depends on the ritual the individual ascribes to as to which they tap into.
As for Heaven and Hell, they reject that kind of specificity and believe in reincarnation instead.
Let us not forget that Wicca is a very modern religion that takes pagan beliefs from numerous sources and had attempted (not always successfully) to incorporate them into a neopagan religion.