ʿAshuraʾ

[ ash-oo-rah ]
/ ˈæʃ ʊ rɑ /

noun

the tenth of the month of Muharram, an important fast day for Sunni Muslims.
(among Shiʿite Muslims) the anniversary of the martyrdom of Hussein.

Origin of ʿAshuraʾ

From the Arabic word ʿĀshūrāʾ