I don’t know either, but names mean things and there are spiritual reasons for things like that. Also Jesus came to baptize with fire.
My understanding:
earth+wind = man
fire + wind = demon
earth+fire+wind=nephilum
Water is the life force that comes from God (John 4:13-14) and hell is very dry (Luke 16:24),
Arid places is the places where demons go after they come out of a man (Luke 11:24).
This was the result of the actions of Judas, which set the above into non-stoppable motion. At that time it was a done deal spiritually and Satan, the prince of this world’ now stands condemned John 16:11 -note statement happened after Judas took the bread but before the arrest, Satan already was condemned.
Jesus clearly stated that only one of the 12 was a devil, and it is made clear that it is Judas. Peter has aspects of his life that is not fully surrendered to God, and as such has given Satan a foothold (Eph 4:27) - which IMHO is pride, which to be able to try to derail Jesus.
Judas was different, in that he was a real fallen angel in the flesh. This scripture I believe speaks to that:
Judas, a spiritual being was able to be born into the world in physical form. Because when this happens, God keeps them in darkness, as such Judas didn’t know he was a demon. Their former knowledge is hidden, but their nature remains. As such Judas had to do the demonic thing and Jesus knew it. By saying it is better that Judas never had been born, means that it would have been better if Judas stayed a spiritual fallen angel then to have been born into the world and be the demon responsible for causing Satan’s kingdom to fall, which I would assume would really piss Satan off, which caused such great torment that Judas hanged himself.
Possibly and this is going out on a limb, when Judas came back to hell, his body was torn apart by the demons, releasing the body of Jesus there as well (as Judas took them).
The scriptures speak of other angels in the flesh, such as the ones that dragged Lot out of Sodom. Interestingly enough Lot’s wife, who looked back, was turned into a piller of salt, which we think of as a bad thing, but Jesus speaks highly of salt, and it could have been the correct thing to do, look back with compassion on those people.
I believe the false prophetess Jezebel in Rev, along with Queen Jezebel, and others in scripture and people today are also fallen angels in the flesh, some I believe being restored.
It has been my experience that God reveals His Word through the Holy Spirit on a personal level, and is the only source of wisdom. Bible studies are good for those in early stages to learn concepts, but is easily distorted and should not be take as a authority.