directorium

From Latin dīrēctōrium (literally “guide”). Doublet of directory.

directorium (plural directoria)

1. (Christianity, historical) In the later Middle Ages, a Catholic liturgical guide for praying the Divine Office and Holy Mass.

From dīrigō (“direct to a place, guide, steer”) +‎ -tōrium.

• (Classical) IPA^(key): /diː.reːkˈtoː.ri.um/, [d̪iːreːkˈt̪oːriʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /di.rekˈto.ri.um/, [d̪irekˈt̪ɔːrium]

dīrēctōrium n (genitive dīrēctōriī or dīrēctōrī); second declension

1. transport route
2. guide

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• dīrēctē
• dīrēctus / dērēctus

• → English: directorium
• → Middle English: directorie, dyrectorye
  • English: directory

• directorium in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• Souter, Alexander (1949) “directorium”, in A Glossary of Later Latin to 600 A.D.‎, 1st edition, Oxford: Oxford University Press, published 1957, page 106