hagiology

from WordNet (r) 3.0 (2006)

hagiology
    n 1: literature narrating the lives (and legends) of the saints

from The Collaborative International Dictionary of English v.0.48

Hagiology \Ha`gi*ol"o*gy\ (-j[y^]), n. [Gr. "a`gios sacred +
   -logy.]
   The history or description of the sacred writings or of
   sacred persons; a narrative of the lives of the saints; a
   catalogue of saints. --J. H. Newman.
   [1913 Webster]