Etymologically

Etymology and origin of the Proto-Indo-European word *h₁éḱwos

Confidence
Established
Etymology tree
inherited borrowed derived
Proto-Indo-European *h₁éḱwos
Ancient Greek ἵππος (híppos)

Reconstruction

The thematic noun is written *h₁ék̑wos in the Handbook of Comparative and Historical Indo-European Linguistics,[1] *h₁ék̂wos by Mallory and Adams,[2] *h₁ek-uo- by Kroonen,[3] *h₁eḱ-u- by de Vaan,[4] and *h₁ekwo- by Matasović.[5]

Morphology

Kloekhorst derives the Anatolian words from *h₁eḱu-, a u-stem and not a thematic noun.[6] On that view the paradigm was *h₁ek-u-s, genitive *h₁k-u-ós,[3] and the thematic *h₁eḱuo- arose after Anatolian separated.[7]

The feminine *h₁ék̑w-eh₂ "mare" is formed by replacing the thematic vowel with the feminine suffix.[1]

Evidence

Ten branches are cited under Reflexes, Anatolian and Tocharian among them.[6][8] Among the groups, the word is absent for certain only in Slavic.[9] The Armenian word means "donkey", and Mallory and Adams allow that it may be an unrelated loanword for "ass",[9] while Martirosyan keeps it under this etymon.[10]

Competing analyses

The Greek word does not fit: *ἔππος would be expected, and both the ἰ- and the initial aspiration are problems.[7] Kroonen suggests that the geminate continues *ἕπϝος, a contamination of the expected nominative and genitive.[3]

A link with *Hōk̑ú- "fast" is called possible by Kölligan,[11] and Beekes says it cannot be demonstrated.[7]

Meanings

  1. horse[2]

Mallory and Adams hold that the evidence for a specifically domestic horse is not strong, since no linguistic marker clearly shows an animal to be domestic.[12]

Derivatives

  • *h₁ék̑w-eh₂, "mare": Sanskrit अश्वा (áśvā), Latin equa, Old Lithuanian ašvà.[1]
  • Proto-Italic *ekwo-pet-o-, "horse-rider" or "charioteer", presupposed by Venetic ekvopetaris.[4]

Reflexes

  • Anatolian: Hittite *ekku- (“horse”) (written with a Sumerogram), Hieroglyphic Luwian ásu-, Lycian esb-.[6]
  • Tocharian: Tocharian B yakwe (“horse”), Tocharian A yuk.[8]
  • Indo-Aryan: Sanskrit अश्व (áśva-, “horse”), feminine Sanskrit अश्वा (áśvā-).[13]
  • Iranian: Avestan aspa- (“horse”).[13]
  • Greek: Ancient Greek ἵππος (híppos, “horse”), Mycenaean Greek i-qo.[7]
  • Armenian: Old Armenian էշ (ēš, “donkey”).[10]
  • Italic: Latin equus (“horse”), Venetic ekvon.[4]
  • Celtic: Proto-Celtic *ekʷo- (“horse”), Old Irish ech.[5]
  • Germanic: Proto-Germanic *ehwa- (“horse”), Old English eoh.[3]
  • Baltic: Lithuanian ašva (“mare”), Old Prussian aswinan "mare's milk".[14]

References

  1. ^ a b c 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. 2095
  2. ^ a b Mallory, J. P.; Adams, D. Q. (2006), The Oxford Introduction to Proto-Indo-European and the Proto-Indo-European World, Oxford: OUP, p. 135
  3. ^ a b c d Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 115
  4. ^ a b c 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. equus
  5. ^ a b Matasović, Ranko (2009), Etymological Dictionary of Proto-Celtic, Leiden: Brill, p. 116
  6. ^ a b c Kloekhorst, Alwin (2008), Etymological Dictionary of the Hittite Inherited Lexicon, Leiden: Brill, p. 237
  7. ^ a b c d 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. ἵππος
  8. ^ a b Adams, Douglas Q. (2013), A Dictionary of Tocharian B, 2nd ed., Amsterdam: Rodopi, p. 518
  9. ^ a b Mallory, J. P.; Adams, D. Q. (2006), The Oxford Introduction to Proto-Indo-European and the Proto-Indo-European World, Oxford: OUP, p. 139
  10. ^ a b Martirosyan, Hrach K. (2010), Etymological Dictionary of the Armenian Inherited Lexicon, Leiden: Brill, p. 290
  11. ^ 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. 2265
  12. ^ Mallory, J. P.; Adams, D. Q. (2006), The Oxford Introduction to Proto-Indo-European and the Proto-Indo-European World, Oxford: OUP, p. 154
  13. ^ a b Mayrhofer, Manfred (1986–2001), Etymologisches Wörterbuch des Altindoarischen, 3 vols, Heidelberg: Winter, p. 139
  14. ^ Derksen, Rick (2015), Etymological Dictionary of the Baltic Inherited Lexicon, Leiden: Brill, p. 79

Descendants

Cite this entry

“*h₁éḱwos.” Etymologically, 5 Nov. 2026, etymologically.com/ine-pro/*h%E2%82%81%C3%A9%E1%B8%B1wos. Accessed 6 Nov. 2026.

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