Allahu Akbar
/ˌaləhuː ˈakbɑː/exclamation
‘God is (most) great’: the declaration of the Takbīr, used in Islamic liturgical forms and prayers, and by Muslims as a general exclamation of faith, thanksgiving, etc.
Origin
Mid 18th century. From Arabic allāhu akbar ‘God is most great’ from allāhu, nominative of allāh + akbar, elative of kabīr great.