Etymologically

datum

Etymology and origin of the Latin word datum

Confidence
Established
Formation
Derivation
First attested
Plautus
Ultimate origin
Proto-Indo-European (*deh₃-)

Pronunciation

  • IPA (Classical): [ˈda.tũː][1]
  • IPA (Ecclesiastical): [ˈdaː.tum][1]

Forms

datum n (genitive datī); second declension[1]

Etymology

It is the neuter of datus, the participle of dō “to give”, used as a noun.[2][1][3] De Vaan traces the root of ⟨dō⟩ to Proto-Indo-European *deh₃- (“to give”), whose root aorist gave Latin ⟨dare⟩.[4]

Earliest recorded meaning

Its earliest source is Plautus.[5] Köbler dates Plautus c. 250–184 BC.[5]

Semantic evolution

It meant that which is given, a present, mostly in the plural, as in Propertius and Ovid, and in accounts a debit.[2][6]

In Ecclesiastical Latin it meant a gift.[7] Medieval Latin used it for a legacy, an enfeoffment and investiture, and for a charter.[8] This gave German Datum “date”.[5] English datum, in the plural data (1640s, “a fact given or granted”), first meant a fact given as the basis of a mathematical problem.[3] It survives in Italian dato and dado, Spanish dato and dado and French dé.[1]

Timeline

  • c. 250–184 BC – Plautus uses it.[5]
  • 43 BC–18 AD – Ovid uses it of gifts.[6][5]
  • 1640s – English data is recorded.[3]

Meanings

Noun

  1. That which is given, a present, gift.[2][6]
  2. (accounts) A debit.[2]
  3. (Medieval Latin) A legacy; an investiture.[8]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry

“Datum.” Etymologically, 17 Oct. 2026, etymologically.com/la/datum. Accessed 17 Oct. 2026.

Last edited on . ·