Khizlan

KHIZLAN خذلان
“Abandonment.” The abandonment of a Muslim by God. The word occurs once in the Qur’an, Surah iii. 154 “If then God help you, none shall overcome you, but if He abandon you, who is he that shall help you.”
Used by a Christian, it would imply the state of a person fallen from grace.

Based on Hughes, Dictionary of Islam