[paudio]

Whatever the etymology, Allah is a term used by many Christians not only in the Middle East but also in Southeast Asia. Allah is in their Bible. It is the Muslims who refuse to acknowledge this, as we can see from Malaysian's government raid of Christian Bibles.

Christian Post

Many Christian terms, concepts, or practices are also adopted from other religion or beliefs; particularly beliefs of European's tribes. We imputed new meanings to those words that fit to Christian beliefs.

[denydenydeny]

The use of “Allah” as the term for “God” is widespread in the Christian world, as you said. I remember being surprised that even the Georgians, who’ve been Christian for a thousand years, use the word.

In modified form, “Allah” also exists in other languages as a nonreligious term, such as the Spanish “Ole!” which is a legacy from the Muslim occupation of Spain.