Etymologically

Etymology and origin of the Proto-West Germanic word *ahtō

Confidence
Established
Formation
Inherited
Inherited from
Proto-Germanic *ahtōu
Etymology tree
inherited borrowed derived
Proto-West Germanic *ahtō
German acht
Old English eahta
English eight

Reconstruction

Ringe and Taylor reconstruct *ahtō for Proto-West Germanic,[1] and Wiktionary has the same form.[2] It continues inherited from Proto-Germanic *ahtōu (“eight”),[1][3] which Kroonen, Köbler and EWA write *ahtau.[4][5][6] Ringe and Taylor count it among the few examples of a monophthongization in Proto-West Germanic of the remaining diphthongs of unstressed syllables to long mid vowels, which made *ahtōu into *ahtō.[7] Later, unstressed *ō at the end of a word was unrounded in Old English, in Old Frisian and in the Old Saxon of the Lublin psalm fragments and a few other short texts, so that *ahtō became *ahtā, the source of Old English eahta and Old Frisian achta, while Old Saxon ahto and Old High German ahto keep the o.[8] In Old English the fronted *æ was then broken before *h, *æhtā giving the West Saxon form, with Northumbrian ⟨æhto⟩ and Mercian ⟨hund-æhta-tiġ⟩ "eighty".[9][10]

Morphology

A cardinal numeral.[11][12] Ringe reconstructs the Proto-Germanic numerals up to "twelve" as uninflected, at least before a noun within a noun phrase.[3] EWA infers the Proto-Germanic form *ahtau especially from the Gothic numeral and the inflected forms with -w- of Old High German, such as ⟨ahtouuiu⟩, and of Northumbrian Old English, such as ⟨æhtowe⟩.[6]

Evidence

The numeral is attested in all the West Germanic languages: Old English eahta, Old Frisian achta, Old Saxon ahto and Old High German ahto,[10] and Old Dutch ahto in the Middle Franconian Rhyme Bible of 1151–1200.[13] EWA calls it a very old numeral found in all the Germanic languages.[6]

Meanings

  1. eight[1][2]

Old Frisian perhaps also used the numeral as a noun for a body of eight judges.[14]

Derivatives

  • *ahtudō "eighth", which Wiktionary reconstructs;[15] Köbler sets up the Proto-Germanic ordinal *ahtudō- for forms such as Old English eahtoþa and Old Frisian achtunda.[16][17]
  • *ahtō tigiwi and *hund ahtō tigiwi "eighty", which Wiktionary reconstructs;[18][19] the Old Saxon form is ahtodoch (“eighty”).[20]

Reflexes

  • Old English: eahta (“eight”)[21]
  • Old Frisian: achta (“eight”)[14]
  • Old Saxon: ahto (“eight”)[22]
  • Old Dutch: ahto (“eight”)[13]
  • Old High German: ahto (“eight”)[6]

References

  1. ^ a b c Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 61
  2. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ahtō
  3. ^ a b Ringe, Don (2017), From Proto-Indo-European to Proto-Germanic, 2nd ed., Oxford: Oxford University Press, p. 320
  4. ^ Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 6
  5. ^ Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. *ahtau
  6. ^ a b c d 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. ahto
  7. ^ Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 60–61
  8. ^ Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 154
  9. ^ Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 176
  10. ^ a b Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 312
  11. ^ Köbler, Gerhard (2014), Altsächsisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. ahto
  12. ^ Köbler, Gerhard (2014), Altfriesisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. achta
  13. ^ a b Oudnederlands Woordenboek (2009–), Instituut voor de Nederlandse Taal, Leiden; gtb.ivdnt.org, p. s.v. ahto
  14. ^ a b Hofmann, Dietrich; Popkema, Anne Tjerk (2008), Altfriesisches Handwörterbuch, Heidelberg: Carl Winter, p. s.v. achta
  15. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ahtudō
  16. ^ Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. *ahtudō-
  17. ^ Köbler, Gerhard (2014), Altfriesisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. achtunda
  18. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ahtō tigiwi
  19. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *hund ahtō tigiwi
  20. ^ Köbler, Gerhard (2014), Altsächsisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. ahtodoch
  21. ^ Holthausen, Ferdinand (1934), Altenglisches etymologisches Wörterbuch, Heidelberg: Carl Winter, p. s.v. eahta
  22. ^ Berr, Samuel (1971), An Etymological Glossary to the Old Saxon Heliand, Berne / Frankfurt: Herbert Lang, p. 26

Related etymologies

  • *stain · also from Proto-Germanic
  • *beran · also from Proto-Germanic
  • *sōkijan · also from Proto-Germanic
  • *fimf · also from Proto-Germanic
  • *hail · also from Proto-Germanic
  • *hertā · also from Proto-Germanic
  • *busk · also from Proto-Germanic
  • *reht · also from Proto-Germanic
Cite this entry

“*ahtō.” Etymologically, 16 Nov. 2026, etymologically.com/gmw-pro/*aht%C5%8D. Accessed 16 Nov. 2026.

Last edited on . ·