Breviarium Romanum

The Roman Breviary (Latin: Breviarium Romanum) is the liturgical book of the Latin liturgical rites of the Catholic Church containing the public or canonical prayers, hymns, the Psalms, readings, and notations for everyday use, especially by bishops, priests, and deacons in the Divine Office (i.e., at the canonical hours or Liturgy of the Hours, the Christians' daily prayer). The word breviary, in general, refers to a collection of Christian orders of prayers and readings, such as contained in Anglican or Lutheran resources. It may also be used to refer to an abridged version of any text or a brief account or summary of some subject, but is primarily used to refer to a Christian liturgical book. The volume containing the daily hours of Roman Catholic prayer was published as the Breviarium Romanum (Roman Breviary) until the reforms of Paul VI, when it became known as the Liturgy of the Hours. However, these terms are used interchangeably to refer to the Office in all its forms. This entry deals with the Roman Breviary prior to the changes introduced by Pope Paul VI in 1974.

This word breviary (Lat. Breviarium), signifies in its primary acceptation an abridgment, or a compendium. It is often employed in this sense by Christian authors, e.g. Breviarium fidei, Breviarium in psalmos, Breviarium canonum, Breviarium regularum. In liturgical language Breviary has a special meaning, indicating a book furnishing the regulations for the celebration of Mass or the canonical Office, and may be met with under the titles Breviarium Ecclesiastici Ordinis, or Breviarium Ecclesiæ Rominsæ (Romanæ). In the ninth century Alcuin uses the word to designate an office abridged or simplified for the use of the laity. Prudentius of Troyes, about the same period, composed a Breviarium Psalterii (v. inf. V. HISTORY). In an ancient inventory occurs Breviarium Antiphonarii, meaning "Extracts from the Antiphonary". In the "Vita Aldrici" occurs "sicut in plenariis et breviariis Ecclesiæ ejusdem continentur". Again, in the inventories in the catalogues, such notes as these may be met with: "Sunt et duo cursinarii et tres benedictionales Libri; ex his unus habet obsequium mortuorum et unus Breviarius", or, "Præter Breviarium quoddam quod usque ad festivitatem S. Joannis Baptistæ retinebunt", etc. Monte Cassino about A.D. 1100 obtained a book titled "Incipit Breviarium sive Ordo Officiorum per totam anni decursionem".

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