Bollandist any of the editors of the Acta Sanctorum, a critical and official hagiology begun by the Jesuits in the 17th century. dulia the devotion, veneration, or respect accorded saints. hagiography the writing and critical study of the lives of the saints; hagiology. — hagiographer, n. —hagiographic, hagiographical, adj. hagiolatry the veneration or worship of saints. —hagiolater, n. —hagiolatrous, adj. hagiology 1. the branch of literature comprising the lives and legends of the saints. 2. a biography or narrative of the life of a saint or saints. 3. a collection of such biographies. —hagiologist, n. —hagiologic, hagiological, adj. hagiophobia an intense dislike for the saints and the holy.