Etymologically

dictionarius

Etymology and origin of the Latin word dictionarius

Confidence
Established
Formation
Derivation
First attested
before 1250, John of Garland
Ultimate origin
Latin dictiō
Etymology tree
inherited borrowed derived
Latin dictio
Latin dictionarius
From the same root
Latin dictionarium ← dictio
Latin dictiosus ← dictio

Pronunciation

  • Classical: [dɪk.ti.oːˈnaː.ri.ʊs][1]
  • Ecclesiastical: [dik.t͡si.oˈnaː.ri.us][1]

Forms

dictiōnārius m (genitive dictiōnāriī); second declension[1]

Etymology

It is from Latin dictiō (“saying; speech”) + -ārius,[1] short for ⟨dictionarius liber⟩, a “book of words”.[2][3] The first part is a noun of action from dīcō2 (“to say”).[4][3]

Earliest recorded meaning

Its earliest record is John of Garland's Dictionarius,[3] before 1250,[5] which explains its title: the little book is called dictionarius from the most necessary words (dictiones) that every scholar should keep not only in a wooden chest but in the cupboard of his heart.[2]

Semantic evolution

Later medieval book inventories list copies of a dictionarius, also spelled dixionarius,[2][5] and Polish and Bohemian sources use it for a dictionary or lexicon.[6][7] Renaissance humanists such as Decembrio, Thomas More and Erasmus still used the masculine, and by metonymy it could also mean the compiler of a dictionary.[8][2] A rare adjective, “of a dictionary”, appears in Sixtus of Siena.[8]

The neuter dictionarium became the commoner form, and it is the source of English dictionary.[3][1]

Timeline

  • before 1250 – John of Garland names his Dictionarius.[2][5]
  • 1396 – An inventory of Meaux lists a dictionarius.[2]
  • 1439 – An Oxford inventory lists the first part of a dictionarius.[2]
  • c. 1480 – A Polish record lists a dictionarius among books.[6]
  • c. 1495 – A Dictionarius pauperum for preachers is printed.[8]
  • 1501 – An Oxford college inventory spells it dixionarius.[2]

Meanings

Noun

  1. (Medieval Latin) A dictionary, a word book.[2][1][7]
  2. (New Latin) The compiler of a dictionary.[8]

Adjective

  1. (New Latin) Of or like a dictionary.[8]

Usage notes

Thomas More writes that he brought no dictionarium aliquem except Hesychius and Dioscorides, an accusative of the masculine.[2][8] The neuter dictionarium has the same meaning.[6]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  5. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl
  7. ^ a b 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. ^ a b c d e f Ramminger, Johann, Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, www.neulatein.de
Cite this entry

“Dictionarius.” Etymologically, 24 Oct. 2026, etymologically.com/la/dictionarius. Accessed 24 Oct. 2026.

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