Etymologically

dictionarium

Etymology and origin of the Latin word dictionarium

Confidence
Probable
Formation
Derivation
First attested
9th century
Ultimate origin
Latin dictiō
Etymology tree
inherited borrowed derived
Latin dictio
Latin dictionarium
English dictionary
From the same root
Latin dictionarius ← dictio
Latin dictiosus ← dictio

Pronunciation

  • Classical: [dɪk.ti.oːˈnaː.ri.ũː][1]
  • Ecclesiastical: [dik.t͡si.oˈnaː.ri.um][1]

Forms

dictiōnārium n (genitive dictiōnāriī); second declension[1]

Etymology

It is from Latin dictiō (“saying, word”) + -ārium,[1] the neuter of dictiōnārius.[1] Etymonline takes it to be probably a shortening of the phrase ⟨dictionarius liber⟩, “book of words”.[2] The first part is a noun of action from dīcō2 (“to say”),[3][2] which goes back to Proto-Indo-European *deyḱ- (“to show”).[1]

Earliest recorded meaning

Köbler records it as early as the 9th century,[4] in the sense of a dictionary;[2] Etymonline reports that the medieval word is said to have been first used by John of Garland as the title of a Latin vocabulary of about 1220.[2]

Semantic evolution

The word became the usual Renaissance name for a dictionary.[1] In 1497 Aldus said that the Greek lexika could be called dictionaria in Latin, and it appears in book titles such as Dictionarium iuris civilis et canonici (1481).[5] The masculine dictionarius was used in the same sense.[6][7]

It passed into the Romance languages and English as a learned word: Middle English dixionare, French dictionnaire, Italian dizionario and Catalan diccionari.[1] English dictionary dates from the 1520s.[2]

Timeline

  • 9th century – Köbler's earliest record.[4]
  • c. 1220 – John of Garland is said to have used the word for the title of a Latin vocabulary.[2]
  • 1481 – A printed Dictionarium iuris civilis et canonici appears.[5]
  • 1497 – Aldus equates it with Greek lexika.[5]
  • 1519 – Brunfels writes of a Hebrew dictionarium.[5]
  • 1520s – English borrows it as dictionary.[2]
  • 1538 – A Kraków print is titled Dictionarium trilingue.[6]

Meanings

Noun

  1. (Medieval Latin, New Latin) A dictionary, lexicon.[1][5][6][8]

Usage notes

Some medieval and Renaissance texts use the masculine dictiōnārius instead; the eLexicon Polonorum treats both under one head.[6]

References

  1. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  4. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d e Ramminger, Johann, Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, www.neulatein.de
  6. ^ a b c d Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl
  7. ^ Latinitatis medii aevi lexicon Bohemorum / Slovník středověké latiny v českých zemích (1977–), Prague: Academia; electronic version, Institute of Philosophy of the Czech Academy of Sciences
  8. ^ Bartal, Antal, et al. (1987–), Lexicon Latinitatis Medii Aevi Hungariae, Budapest: Akadémiai Kiadó; online ed. ELTE

Borrowed into

Cite this entry

“Dictionarium.” Etymologically, 24 Oct. 2026, etymologically.com/la/dictionarium. Accessed 24 Oct. 2026.

Last edited on . ·