Plural form of hagiography; multiple accounts or collections of written biographies of saints or greatly revered persons.
From Greek 'hagios' (holy) + 'graphia' (writing). The plural form follows the Greek tradition of adding '-ies' to '-ia' nouns, used since medieval times for collections of saint's lives.
The hagiographies of saints were so popular in medieval Europe that almost every monastery had its own collection—kind of like having authorized biographies that conveniently left out embarrassing details!
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