A body or collection of lives or legends of the saints; specifically a book of readings from saints' lives, often used as lessons during church services, a lectionary.
Recorded earliest in extended use.
2A body or system of myths, legends, stories, etc., concerning or relating to a particular fictional world; a work containing this.
Originally and chiefly in or with reference to the writings of J. R. R. Tolkien.
Mid 19th century. From post-classical Latin legendarium collection of saints' lives.