Wiktionary

datum

See also: dátum, and Datum

English

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Etymology

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Borrowed from Latin datum (“a given”). Doublet of die.

Pronunciation

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  • IPA(key): /ˈdeɪtəm/, /ˈdætəm/, /ˈdɑːtəm/ (see data for regional distribution)
  • Audio (US):(file)
  • Rhymes: -eɪtəm, -ætəm, -ɑːtəm

Noun

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English Wikipedia has articles on:
Wikipedia Wikipedia

datum (plural (senses 1–3) data or (senses 1 and 4–5) datums)

  1. (dated) Singular of data; a single recorded observation.
    Synonym: data point
    Holonym: data set
  2. (philosophy) A fact known from direct observation.
  3. (philosophy) A premise from which conclusions are drawn.
  4. (cartography, surveying, engineering) A fixed reference point or set of reference points which precisely define a system of measurement or a coordinate system.
    Near-synonym: benchmark
    A geodetic datum is sometimes also called a benchmark.
    The machinist is required to measure this dimension from the hole circle datum when determining whether it is within tolerance.
    • 2000, Nuno Sergio Marques Antunes, “The Importance of the Tidal Datum in the Definition of Maritime Limits and Boundaries”, in Maritime Briefing, volume 2, number 7, International Boundaries Research Unit, University of Durham, page 5:
      In a strict sense, a tidal datum can be understood as the reference plane (or surface) to which the height of a predicted tide is referred. […] Sounding and chart datums are low water datums, that is, they refer to the level of the water surface at low tide. Nonetheless, there are also datums based on high water levels. […] These two different datums may be included in the broader category of vertical datums, which comprises any plane or surface used as a reference to measure vertical distances (such as depths, drying features, heights on shore, etc.).
    • 2007, Roger F Tomlinson, Thinking about GIS: geographic information system planning for managers:
      Datums are another important map aspect related to projection. A datum provides a base reference for measuring locations on Earth's surface.
    • 2012, Yong-Qi Chen, Yuk-Cheung Lee, chapter 2.3, in Geographical Data Acquisition:
      For horizontal measurements [on the Earth], we fix a mathematical body of Earth in space using a Cartesian coordinate system. After that, a separate coordinate system is created over the surface of this body to generate horizontal coordinates. A mathematical earth body fixed in space makes up the horizontal datum.
  5. (nautical) A floating reference point, or SLDMB, used to evaluate surface currents in a body of water. Often employed by coastal search and rescue.

Usage notes

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See data § Usage notes.

Derived terms

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Translations

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Verb

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datum (third-person singular simple present datums, present participle datuming or datumming, simple past and past participle datumed or datummed)

  1. To provide missing data points by using a mathematical model to extrapolate values that are outside the range of a measuring device.
    • 1982, Paul M. Tucker, Pitfalls Revisited - Issue 3, →ISBN, page 6:
      Removing the effects of any period of deformation by datuming or flattening selective reflection horizons should restore the structure prior to the datumed horizon, or the amount of deformation above the datumed horizon.
    • 1998, Stuart Fagin, Model-based Depth Imaging, →ISBN, page 164:
      On the left the stacking velocity functions are datumed to sea level and show great disparity.
    • 2014, Hua-Wei Zhou -, Practical Seismic Data Analysis, →ISBN, page 62:
      On the other hand, if we have a sufficiently accurate near-surface velocity model, we may apply wavefield datuming to convert the raw data into new data as if they were recorded along a datum below the near surface (Box 2.3).
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References

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Czech

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Pronunciation

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Noun

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datum n

  1. date (point in time)

Declension

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Declension of datum (hard neuter foreign)
singular plural
nominative datum data
genitive data dat
dative datu datům
accusative datum data
vocative datum data
locative datu datech
instrumental datem daty
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Further reading

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  • “datum”, in Příruční slovník jazyka českého (in Czech), 1935–1957
  • “datum”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989

Dutch

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Etymology

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From Middle Dutch datum, from Latin datum (“given”, past participle) (from the practice of signing letters in Latin by noting the date on which they were dispatched). Compare English date.

Pronunciation

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  • IPA(key): /ˈdaːtʏm/
  • Audio:(file)
  • Hyphenation: da‧tum

Noun

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datum m (plural datums or data, diminutive datumpje n)

  1. date (point in time)

Usage notes

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Datum is one of the few Dutch words ending on -um that does not have a neutral gender.

Derived terms

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Descendants

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  • Negerhollands: datum
  • → Caribbean Javanese: dhatem

Noun

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datum n (plural data, diminutive datumpje n)

  1. datum (piece of information)
    Synonym: gegeven

Indonesian

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Etymology

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From Dutch datum, from Middle Dutch datum, from Latin datum (“given”, past participle).

Pronunciation

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  • IPA(key): [ˈdatʊm]
  • Hyphenation: da‧tum

Noun

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datum (plural datum-datum, first-person possessive datumku, second-person possessive datummu, third-person possessive datumnya)

  1. date (day and month)
    Synonyms: hari bulan, penanggalan, tanggal, tarikh
  2. (cartography, engineering) A fixed reference point, or a coordinate system.

Noun

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datum (plural data, first-person possessive datumku, second-person possessive datummu, third-person possessive datumnya)

  1. a single information

References

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Latin

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Etymology

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Neuter past participle of dō.

Pronunciation

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Noun

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datum n (genitive datī); second declension

  1. gift, present
    Synonyms: pretium, dōnum, praemium, datiō, oblātiō

Declension

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Second-declension noun (neuter).

singular plural
nominative datum data
genitive datī datōrum
dative datō datīs
accusative datum data
ablative datō datīs
vocative datum data
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Descendants

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Verb

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datum

  1. accusative supine of dō

Participle

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datum

  1. inflection of datus:
    1. nominative/accusative/vocative neuter singular
    2. accusative masculine singular

References

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  • datum 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)
  • “datum”, in The Perseus Project (1999) Perseus Encyclopedia‎[1]
  • “datum”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
  • “datum”, in William Smith, editor (1854, 1857), A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly

Latvian

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Noun

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datum

  1. vocative singular of datums

Norwegian Nynorsk

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Etymology

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From Latin datum. Doublet of dato.

Pronunciation

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Noun

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datum n (definite singular datumet, indefinite plural datum, definite plural datuma)

  1. (dated) a date (specific day in time)
  2. a fact
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References

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Serbo-Croatian

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Etymology

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From Latin datum.

Pronunciation

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  • IPA(key): /dǎːtum/
  • Hyphenation: da‧tum

Noun

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dátum m (Cyrillic spelling да́тум)

  1. date (as in day, month, and year)

Declension

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Declension of datum
singular plural
nominative datum datumi
genitive datuma datuma
dative datumu datumima
accusative datum datume
vocative datume datumi
locative datumu datumima
instrumental datumom datumima

References

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  • “datum”, in Hrvatski jezični portal (in Serbo-Croatian), 2006–2024

Slovene

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Slovene Wikipedia has an article on:
Wikipedia sl

Pronunciation

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  • IPA(key): /dàːtum/, /dáːtum/

Noun

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dātum m inan

  1. date (point of time)

Inflection

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 The diacritics used in this section of the entry are non-tonal. If you are a native tonal speaker, please help by adding the tonal marks.
Masculine inan., hard o-stem
nom. sing. dátum
gen. sing. dátuma
singular dual plural
nominative
(imenovȃlnik) 		dátum dátuma dátumi
genitive
(rodȋlnik) 		dátuma dátumov dátumov
dative
(dajȃlnik) 		dátumu dátumoma dátumom
accusative
(tožȋlnik) 		dátum dátuma dátume
locative
(mẹ̑stnik) 		dátumu dátumih dátumih
instrumental
(orọ̑dnik) 		dátumom dátumoma dátumi

Swedish

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Etymology

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From Latin datum (“given”, past participle).

Pronunciation

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Noun

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datum n

  1. date; (day, month and year)

Usage notes

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  • The now very uncommon (or obsolete) declension datot-data was used in 1958.

Declension

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Declension of datum
nominative genitive
singular indefinite datum datums
definite datumet datumets
plural indefinite datum datums
definite datumen datumens
Declension of datum
nominative genitive
singular indefinite datum datums
definite datot datots
plural indefinite data datas
definite data datas

See also

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Anagrams

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