Webster's Revised Unabridged Dictionary · 1913

Hadj

Hadj (haj) , noun

[Arabic hajj, from hajja to set out, walk, go on a pilgrimage.]

The pilgrimage to Mecca, performed by Muslims. It is the duty of Moslems to make a journey to Mecca at least once ina lifetime, or if that is not possible, three journeys to one of the alternate sacred sites.