Etymologically

Etymology and origin of the Proto-Germanic word *ainaz

Confidence
Established
Formation
Inherited
Inherited from
Proto-Indo-European *h₁óynos
Etymology tree
inherited borrowed derived
Proto-Germanic *ainaz
Old Norse einn
Proto-West Germanic *ain
Dutch een
German ein
Old English ān
English a
English a-
English an
English one
From the same root
Old Norse neinn ← einn
Dutch alleen ← een
Dutch eens ← een
Dutch iedereen ← een
German einfach ← ein
German einmal ← ein
English apiece ← a
English abed ← a-
English ablaze ← a-
English abreast ← a-
English adrift ← a-
English agate ← a-
English aground ← a-
English ahead ← a-
English akin ← a-
English aloof ← a-
English aloud ← a-
English arouse ← a-
English asexual ← a-
English ashore ← a-
English aside ← a-
English asleep ← a-
English asymmetrical ← a-
English asymptomatic ← a-
English asynchronous ← a-
English atop ← a-
English atypical ← a-
English awry ← a-
English alone ← one
English anyone ← one
See all derived words →

Reconstruction

The numeral is *ainaz in Orel, Ringe and Wiktionary,[1][2][3] cited by its stem *aina- in Kroonen and Köbler.[4][5]

Etymology

It is inherited from Proto-Indo-European *h₁óynos (“one”).[3] Ringe takes it from PIE *óynos "single (?)", which is also the usual word for "one" in Italic, Celtic and probably Balto-Slavic;[2] Kroonen writes *Hoi-Hn-o-.[4]

Morphology

Ringe says the numeral was inflected like an ordinary strong adjective.[6] The inherited PIE word *sem- "one" does not survive in Germanic.[2] The negative suffixes Old Norse -a and -at of Old West Norse poetry go back to the masculine and neuter forms of "one", *aina and *ainata.[7]

Evidence

The word is attested in all three branches: Gothic 𐌰𐌹𐌽𐍃 (ains), Old Norse einn, Old English ān, Old Frisian ān, Old Saxon ēn and Old High German ein.[4] In Gothic it had not yet become an indefinite article.[8] The Finnic loan Finnish aina (“always”) and its relatives were borrowed from this word.[9][10]

Competing analyses

Kroonen calls *ainaz a West Indo-European numeral built on a root *Hoi-, which also underlies the Sanskrit word for "one", from *Hoi-ko- and the Avestan word for "one" from *Hoi-uo-; the Germanic word is identical to Latin ūnus.[4] Orel likewise equates it with Latin, Old Irish óen and Old Prussian ains, and relates it further to the Sanskrit and Avestan words and to Ancient Greek οἶος (oîos).[1] Feist split PIE *oinos into *oi- and a suffix *-no-.[11] Bammesberger counts *aina- among the words for unity in which innovation is to be expected, since the related languages show other consonants in place of its -n-.[12]

Meanings

  1. one[4][1][3]
  2. some[3]

Ringe notes that several daughters use plural forms for "some" and weak forms for "alone", and that both uses may already have existed in Proto-Germanic.[6] Old Frisian also used the word as an indefinite article and, with numerals, for "about".[13]

Derivatives

  • *ainalif "eleven", with *-lif "left over";[14] Kroonen *ainalifa-.[4]
  • *ainagaz "only, sole", like Latin ūnicus;[15] Orel *ainaʒaz.[16] Kroonen has *ainahan- "single", formally close to the Latin word.[4]
  • Compounds: *ainafalþaz "onefold, simple",[17] *ainaugijaz "one-eyed"[18] and *ainahandijaz "one-handed".[19]

Reflexes

  • Gothic: 𐌰𐌹𐌽𐍃 (ains, “one”)[11]
  • Old Norse: einn (“one; alone; any”)[10]
  • Old English: ān (“one, alone, only, single”)[20]
  • Old Frisian: ēn (“one; a”)[13]
  • Old Saxon: ēn (“one, the same, alone, only, single”)[21]
  • Old High German: ein (“one, some, a certain, the same, only”)[8]

References

  1. ^ a b c Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. s.v. *ainaz
  2. ^ a b c Ringe, Don (2017), From Proto-Indo-European to Proto-Germanic, 2nd ed., Oxford: Oxford University Press, p. 229
  3. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ainaz
  4. ^ a b c d e f g Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 11
  5. ^ Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. *aina-
  6. ^ a b Ringe, Don (2017), From Proto-Indo-European to Proto-Germanic, 2nd ed., Oxford: Oxford University Press, p. 318
  7. ^ Harbert, Wayne (2007), The Germanic Languages, Cambridge: Cambridge University Press
  8. ^ a b 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. ein
  9. ^ Kylstra, A. D.; Hahmo, Sirkka-Liisa; Hofstra, Tette; Nikkilä, Osmo (1991–2012), Lexikon der älteren germanischen Lehnwörter in den ostseefinnischen Sprachen, 3 vols, Amsterdam / Atlanta / New York: Rodopi, p. 14
  10. ^ a b de Vries, Jan (1977), Altnordisches etymologisches Wörterbuch, 2nd ed., Leiden: Brill, p. s.v. einn
  11. ^ a b Feist, Sigmund (1939), Vergleichendes Wörterbuch der gotischen Sprache, 3rd ed., Leiden: Brill, p. s.v. ains
  12. ^ Bammesberger, Alfred (1990), Die Morphologie des urgermanischen Nomens, Heidelberg: Winter, p. 227
  13. ^ a b Hofmann, Dietrich; Popkema, Anne Tjerk (2008), Altfriesisches Handwörterbuch, Heidelberg: Carl Winter, p. s.v. ēn
  14. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ainalif
  15. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ainagaz
  16. ^ Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. s.v. *ainaʒaz
  17. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ainafalþaz
  18. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ainaugijaz
  19. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *ainahandijaz
  20. ^ Holthausen, Ferdinand (1934), Altenglisches etymologisches Wörterbuch, Heidelberg: Carl Winter, p. s.v. ān
  21. ^ Tiefenbach, Heinrich (2010), Altsächsisches Handwörterbuch / A Concise Old Saxon Dictionary, Berlin / New York: De Gruyter, p. s.v. ēn

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

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

Last edited on . ·