Etymologically

Etymology and origin of the Proto-Indo-European word *wed-

Confidence
Probable

Reconstruction

LIV writes the root *u̯ed- 'to gush forth, to well up',[1] and NIL sets up the same verb but marks it as a questionable root.[2] Smoczyński has *u̯ed- 'to gush, of water; to wet',[3] and Kroonen refers to the root as *wed- 'to be wet'.[4]

Morphology

The only verb LIV reconstructs is a nasal-infix present *u-né/n-d-, in Vedic उनत्ति (unátti, “moistens”), with factitive meaning; the Atharvavedic perfect Sanskrit ऊदुः (ūdur) is an innovation.[1] LIV suggests that traces of the nasal present may survive in nouns such as Latin unda (“wave”) and Old Prussian unds (“water”),[1] and Weiss reports that some scholars derive the n of unda and Lithuanian vanduõ from it.[5] Kroonen rejects this, deriving unda from *ud-neh₂-,[4] and Derksen derives the Balto-Slavic nasal from a suffix.[6]

Evidence

As a verb the root survives only in Indo-Iranian, but the noun *u̯ód-r̥ 'water' is widespread.[1] Its derivatives are cited below from Anatolian, Indo-Iranian, Greek, Italic, Germanic, Slavic, Baltic, Armenian and Tocharian.[7][6][8][9]

Competing analyses

Kloekhorst reports that it is disputed whether the root of Hittite utnē (“land”) and Armenian գետին (getin, “ground”) is the same as that of 'water', and that a connection with Greek οὖδας (oûdas, “ground”) would require *h₃ued-.[10] Kroonen, following Lubotsky, derives a root *ueH- 'water' from *ued-, since *-dr regularly became *-h₁r in early PIE.[11]

The root 'to speak' is a different one, *h₂u̯ed- in Kölligan's lexicon of PIE, *h₂wed-.[12]

Meanings

  1. to gush forth, to well up,[1][2] to gush, of water[3]
  2. to wet,[3] to be wet[4]

In Vedic the nasal present is factitive, 'to moisten', and intransitive only once in the Rigveda.[1]

Derivatives

  • *u̯ód-r̥, *ud-én- 'water', *wódr̥.[7][1]
  • *ud-r-o-, *ud-r-eh₂- 'otter', continued in Proto-Germanic *utra-.[11]
  • *u̯ed-os- 'water', in Armenian գետ (get, “river”) and Greek ὕδος (húdos).[8]
  • *uēd-o- 'wet', in Proto-Germanic *wēta-.[13]
  • *wēdu-, in Tocharian B yot (“vital fluid, broth”).[9]

Reflexes

  • Indo-Aryan: Sanskrit उनत्ति (unátti, “moistens”), as listed by LIV.[1]
  • Anatolian: Hittite u̯ātar (“water”).[7]
  • Greek: Ancient Greek ὕδωρ (húdōr, “water”).[14]
  • Italic: Latin unda (“wave, running water”).[15]
  • Germanic: Proto-Germanic *watar- (“water”), Proto-Germanic *wēta- (“wet”).[16][13]
  • Slavic: Old Church Slavonic вода (voda, “water”).[17]
  • Baltic: Lithuanian vanduõ (“water”).[6]
  • Armenian: Old Armenian գետ (get, “river”).[8]
  • Tocharian: Tocharian B yot (“vital fluid, broth”).[9]

References

  1. ^ a b c d e f g h Rix, Helmut, et al. (2001), Lexikon der indogermanischen Verben, 2nd ed., Wiesbaden: Reichert, p. s.v. *u̯ed-
  2. ^ a b Wodtko, Dagmar S.; Irslinger, Britta; Schneider, Carolin (2008), Nomina im indogermanischen Lexikon, Heidelberg: Winter, p. s.v. *u̯ed-
  3. ^ a b c Smoczyński, Wojciech (2018), Lithuanian Etymological Dictionary, Berlin: Peter Lang, p. 2089
  4. ^ a b c Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 588
  5. ^ Weiss, Michael (2020), Outline of the Historical and Comparative Grammar of Latin, 2nd ed., Ann Arbor: Beech Stave
  6. ^ a b c Derksen, Rick (2015), Etymological Dictionary of the Baltic Inherited Lexicon, Leiden: Brill, p. 502
  7. ^ a b c Kloekhorst, Alwin (2008), Etymological Dictionary of the Hittite Inherited Lexicon, Leiden: Brill, p. 987
  8. ^ a b c Martirosyan, Hrach K. (2010), Etymological Dictionary of the Armenian Inherited Lexicon, Leiden: Brill, p. 219
  9. ^ a b c Adams, Douglas Q. (2013), A Dictionary of Tocharian B, 2nd ed., Amsterdam: Rodopi, p. 554
  10. ^ Kloekhorst, Alwin (2008), Etymological Dictionary of the Hittite Inherited Lexicon, Leiden: Brill, p. 933
  11. ^ a b Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 562
  12. ^ Klein, Jared; Joseph, Brian; Fritz, Matthias, eds. (2017–2018), Handbook of Comparative and Historical Indo-European Linguistics, 3 vols (HSK 41), Berlin: De Gruyter Mouton, p. 2252, ch. 124, Kölligan
  13. ^ a b Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 583
  14. ^ Beekes, Robert S. P. (2010), Etymological Dictionary of Greek, with the assistance of Lucien van Beek, Leiden Indo-European Etymological Dictionary Series 10, Leiden; Boston: Brill, p. s.v. ὕδωρ
  15. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill, p. s.v. unda
  16. ^ Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 575
  17. ^ Derksen, Rick (2008), Etymological Dictionary of the Slavic Inherited Lexicon, Leiden Indo-European Etymological Dictionary Series 4, Leiden / Boston: Brill, p. 523
Cite this entry

“*wed-.” Etymologically, 7 Nov. 2026, etymologically.com/ine-pro/*wed-. Accessed 8 Nov. 2026.

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