“Allah” is probably etymologically related to “Eloi”, Aramaic for “God”.
However, the similarity stops there.
Mohammed was a pirate, a murderer, a torturer, a rapist, a pedophile, a polygamist, a slave trader, a Jew hater, a bloody warrior, and an unspeakably cruel tyrant.
Contrast that to Jesus Christ, God in the Flesh to Catholics and Bible-believing Christians.
Not the same God at all.
Actually, Aloho is the Syriac-Aramaic form for Allah. Though RC, I practice my faith in a Maronite (Eastern) Catholic Church. Some of our prayers are in Syriac-Aramaic and the readings are in both English and Arabic. Hence, we hear both forms throughout the divine liturgy.