I still don’t get the bit in Dr T’s ‘God in Arabic’ link above about Christians, Jews and Muslims all worshipping the same deity. The respective words for God might be related and have similar derivations but no Jew, Muslim or Christian would assert adherents of rival faiths are going to get into heaven. I was accused of religious bigotry here for pointing this out and I am still puzzled by the logic. Etymology aside, each and every religion claims all other religions are barking up the wrong spiritual tree and won’t deliver on the afterlife promise. What does it matter if Allah means God? Or that Christ is a prophet in Islam? It just points to these religions’ common linguistic, geographical, cultural and historical roots. I can’t work the relevance of this out except anthropologically.
So Allah means God in Arabic. All monotheistic deities are assigned different names but it doesn’t follow that they are the same deity and the worship of the one you fancy will guarantee eternal life. Christ, for example, was quite explicit that only He is the way and the path etc.
Sorry to bring this up again. The fact that a meaningful word or phrase exists obviously does not mean the referent exists eg unicorn, phlogiston, the present king of France etc. I simply cannot see the connection between etymology, divine truth, and exclusivity in religions.