Anger over that ruling sparked a string of arson attacks and vandalism at Malaysian churches and other places of worship.
The legal dispute stems from efforts by the newspaper of the Roman Catholic Church in Malaysia to use "Allah" in its
Malay-language weekly publication.
Roman Catholic representatives deny there are attempts to convert Muslims and say the government ban is unreasonable because Christians who speak the Malay language had long used "Allah" in their Bibles, literature and songs before authorities sought to enforce the curb in recent years.
Judge Mohamed Apandi Ali, who led a three-member appeals court panel, said the use of "Allah" was "not an integral part of the faith and practice of Christianity."