What is the Latin word for breviary?

The usual Latin words for “breviary” are summārium, breviārium. The right choice depends on the sense; see the distinctions below.

English → Latin

“breviary” in Latin

summāriumsummary; epitome; abstract breviāriumbrief; report (short piece of writing)

The English word breviary itself goes back to Latin brevis, through breviārium.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

breviary

epitome, summarium, breviarium (post-classical breviarium - olim, cum latine loqueremur, summarium vocabatur, Sen.).

Of the Romish Church, *breviarium, *precationum liber.

Quick answer

What is the Latin word for breviary?: The usual Latin words for “breviary” are summārium, breviārium. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.