[med.L. f. collecta a COLLECT (sense 3): see -ARIUM.] A book containing the collects used in the liturgy.
1844. Lingard, Anglo-Sax. Ch. (1858), II. App. 329. A very ancient collectarium, containing the capitula, or short extracts from Scripture, and the several collects which were used in the daily service through the course of the year.
1849. Rock, Ch. of Fathers, I. 439.