Etymologically

Etymology and origin of the Proto-Germanic word *dagaz

Confidence
Established
From
Proto-Indo-European *dʰeǵʰ-
Etymology tree
inherited borrowed derived
Proto-Germanic *dagaz
Old Norse dagr
Proto-West Germanic *dag
Dutch dag
German Tag
Old English dæġ
English day
From the same root
Dutch vandaag ← dag
German Geburtstag ← Tag
German täglich ← Tag
English daybreak ← dæġ
English midday ← dæġ
English Monday ← dæġ
English weekday ← dæġ
English daylight ← day
English daytime ← day
English everyday ← day
English payday ← day
English someday ← day

Reconstruction

The word is *dagaz in Wiktionary,[1] *đaʒaz in Orel[2] and *daʒaz in Fulk;[3] Kroonen and Köbler cite it by its stem *daga-.[4][5] Its origin is disputed.[1][2]

Etymology

In Kroonen's analysis, as Wiktionary reports it, the word is from Proto-Indo-European *dʰeǵʰ- (“day”), a root from which a heteroclitic noun for "day" was also formed.[1] Kroonen himself sets up a PIE thematic noun *dʰoǵʰ-o- and relates the word to *dōgera- ~ *dōgena- "a full day".[4] Orel derives it instead from Proto-Indo-European *dʰegʷʰ- (“to burn”).[2]

Morphology

A masculine a-stem.[4][5][6] Ringe gives its paradigm.[7] The nominative *daʒaz and the accusative *daʒan lost their endings in West Germanic, giving Old English dæg, Old Saxon dag and Old High German tag for both cases.[3] In North Germanic the vowel of the ending was syncopated before the -z, as in Old Norse dagr, and West Germanic lost the final -z itself.[8][9]

As the second member of compounds the word also had a weak n-stem form, *dagan: Old Norse eindagi, Old English āndaga "fixed day" and Old Saxon ēndago "day of death".[10] Kroonen also notes a vṛddhi adjective *-dōga- in Gothic 𐍆𐌹𐌳𐌿𐍂𐌳𐍉𐌲𐍃 (fidurdogs, “lasting four days”) and Gothic 𐌰𐌷𐍄𐌰𐌿𐌳𐍉𐌲𐍃 (ahtaudogs, “eight days old”).[4]

Evidence

The word is attested in all three branches: Gothic 𐌳𐌰𐌲𐍃 (dags) in Gothic, Old Norse dagr in Old Norse, and Old English dæg, Old Frisian dei, Old Saxon dag and Old High German tac in West Germanic.[4] The Gothic word is in Wulfila's Bible, for instance at John 9:4.[10] Crimean Gothic has tag "dies".[10]

Krahe cited a Proto-Norse nominative of the word,[11] but the form read on the Einang stone, of about 400, is now taken as a misreading of the end of a personal name, so that there is no secure older runic record of the noun itself.[12][10] Looijenga reads the start of the inscription on the Vimose buckle as a personal name, A(n)dag(az), whose second element is *dagaz, although Antonsen had read the runes differently.[6] The word was also the name of the d-rune: on the Oberflacht strainer spoon Looijenga explains the choice of the rune by its name, which had become tag in Old High German.[13] De Vries lists Finnish -tai as a Finnish borrowing of the Norse word.[12]

Competing analyses

Orel equates the word with Middle Irish daig (“fire”), Lithuanian dãgas (“summer heat”) and a Sanskrit word for "heat, summer", from *dʰogʷʰos, a derivative of the root "to burn".[2] De Vries and Lehmann also connect that root;[12][10] Casaretto thinks the word referred either to the bright, perhaps hot, time of day or to daybreak.[14] Wiktionary objects that the loss of the labial element would be irregular, since *dawaz would be expected.[1] De Vries found Pokorny's link with the PIE word for "day" seen in Sanskrit अहर् (ahar) unconvincing;[12] Kroonen, on the other hand, takes the Indo-Iranian word as continuing the same heteroclitic noun, nominative *dʰóǵʰ-r, genitive *dʰéǵʰ-n-s, which lost its initial dental early in Indo-Iranian.[15]

Some scholars take the word as an old s-stem: de Vries, after Johansson, cites the Gothic name Dagestheus,[12] Lehmann an old es-stem in Old English dōgor,[10] and Fulk reports Wagner's view that *daʒaz was in origin an s-stem, citing a probably Gothic name recorded in Greek and Old High German tagarōt (“dawn”).[3] Fulk finds no evidence outside Germanic for the quantitative ablaut this needs.[3] Kroonen rejects deriving Old Norse dœgr and Old English dōgor from an s-stem, since they cannot be separated from the n-forms such as Old Norse dœgn.[15]

Meanings

  1. day[4][2][1]
  2. the name of the d-rune[5][1]

Old Frisian also used the word for "lifetime", an appointed day and an assembly,[16] and Old High German for "time".[17] In Old High German it also became a compound element naming a span of time in the abstract, as in Old High German nackuttag (“nakedness”).[18]

Derivatives

  • *dagāną "to dawn",[19] Orel's *đaʒōjanan.[20]
  • *dōg- "day", a nominalisation of *dōgaz "daily", itself a vṛddhi formation to *dagāną.[21][22]
  • *midjadagaz "noon",[23] *airidagaz "days of yore"[24] and *dauþudagaz "deathday".[25]
  • *dagawerką "a day's work"[26] and *dagalangaz "lasting a day".[27]
  • In Orel also *aina-đaʒōn "appointed day"[28] and *alđra-đaʒaz "day of life".[29]

Reflexes

  • Gothic: 𐌳𐌰𐌲𐍃 (dags, “day”)[30]
  • Old Norse: dagr (“day”)[12]
  • Old English: dæg (“day, weekday”)[31]
  • Old Frisian: dei (“day, lifetime, appointed day”)[16]
  • Old Saxon: dag (“day”)[32]
  • Old High German: tag (“day, time”)[17]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *dagaz
  2. ^ a b c d e Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. s.v. *đaʒaz
  3. ^ a b c d Fulk, R. D. (2018), A Comparative Grammar of the Early Germanic Languages, Studies in Germanic Linguistics 3, Amsterdam / Philadelphia: John Benjamins
  4. ^ a b c d e f Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 86
  5. ^ a b c Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. *daga-
  6. ^ a b Looijenga, Tineke (2003), Texts and Contexts of the Oldest Runic Inscriptions, Leiden / Boston: Brill, p. 159
  7. ^ Ringe, Don (2017), From Proto-Indo-European to Proto-Germanic, 2nd ed., Oxford: Oxford University Press, p. 312
  8. ^ Boutkan, Dirk (1995), The Germanic 'Auslautgesetze', Leiden Studies in Indo-European 4, Amsterdam / Atlanta: Rodopi
  9. ^ Nielsen, Hans Frede (2000), The Early Runic Language of Scandinavia: Studies in Germanic Dialect Geography, Heidelberg: Winter
  10. ^ a b c d e f Lehmann, Winfred P. (1986), A Gothic Etymological Dictionary, based on the third edition of Vergleichendes Wörterbuch der gotischen Sprache by Sigmund Feist, Leiden: Brill, p. s.v. dags
  11. ^ Krahe, Hans (1963), Germanische Sprachwissenschaft I: Einleitung und Lautlehre, 5th ed., Sammlung Göschen 238, Berlin: de Gruyter, p. § 115
  12. ^ a b c d e f de Vries, Jan (1977), Altnordisches etymologisches Wörterbuch, 2nd ed., Leiden: Brill, p. 71
  13. ^ Looijenga, Tineke (2003), Texts and Contexts of the Oldest Runic Inscriptions, Leiden / Boston: Brill, p. 251
  14. ^ Casaretto, Antje (2004), Nominale Wortbildung der gotischen Sprache: Die Derivation der Substantive, Heidelberg: Winter
  15. ^ a b Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 97
  16. ^ a b Hofmann, Dietrich; Popkema, Anne Tjerk (2008), Altfriesisches Handwörterbuch, Heidelberg: Carl Winter, p. s.v. dei
  17. ^ a b Köbler, Gerhard (2014), Althochdeutsches Wörterbuch, 6th ed., online, koeblergerhard.de/wikiling, p. s.v. tag
  18. ^ Lloyd, Albert L.; Springer, Otto; Lühr, Rosemarie, et al. (1988–), Etymologisches Wörterbuch des Althochdeutschen, Göttingen: Vandenhoeck & Ruprecht; online ewa.saw-leipzig.de, p. s.v. nackuttag
  19. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *dagāną
  20. ^ Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. s.v. *đaʒōjanan
  21. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *dōg-
  22. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *dōgaz
  23. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *midjadagaz
  24. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *airidagaz
  25. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *dauþudagaz
  26. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *dagawerką
  27. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *dagalangaz
  28. ^ Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. s.v. *aina-đaʒōn
  29. ^ Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. s.v. *alđra-đaʒaz
  30. ^ Feist, Sigmund (1939), Vergleichendes Wörterbuch der gotischen Sprache, 3rd ed., Leiden: Brill, p. s.v. dags
  31. ^ Köbler, Gerhard (2014), Altenglisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. dæg
  32. ^ Tiefenbach, Heinrich (2010), Altsächsisches Handwörterbuch / A Concise Old Saxon Dictionary, Berlin / New York: De Gruyter, p. DAG

Related etymologies

  • *stainaz · also from Proto-Indo-European
  • *beraną · also from Proto-Indo-European
  • *fadēr · also from Proto-Indo-European
  • *watōr · also from Proto-Indo-European
  • *ga- · also from Proto-Indo-European
  • *frijaz · also from Proto-Indo-European
  • *fallaną · also from Proto-Indo-European
  • *standaną · also from Proto-Indo-European
Cite this entry

“*dagaz.” Etymologically, 16 Nov. 2026, etymologically.com/gem-pro/*dagaz. Accessed 16 Nov. 2026.

Last edited on . ·