Etymologically

Etymology and origin of the Latin word nos

Confidence
Established
Formation
Inherited
First attested
204–169 BC, Ennius
Inherited from
Proto-Italic *nōs
Ultimate origin
Proto-Indo-European (*nōs)
Etymology tree
inherited borrowed derived
Latin nos
French nous

Forms

nōs (genitive nostrum or nostrī, dative and ablative nōbīs); plural of ego[1][2]

Etymology

It is inherited from Proto-Italic *nōs (“we, us”), inherited from Proto-Indo-European *nōs, originally the stressed accusative.[1] The old nominative ⟨*wei(s)⟩ was replaced by the accusative, apparently already in Proto-Italic.[1] The genitive ⟨nostrum⟩ was first the genitive plural of noster; after Plautus it was largely replaced by ⟨nostrī⟩.[1]

Cognate with Old Irish sní (“we”), Hittite anzāš (“us”), Ancient Greek νῶϊ (nôï, “we two”), Gothic 𐌿𐌽𐍃 (uns) and English us.[1][2]

Earliest recorded meaning

It is found from Naevius on;[1] Köbler's first source is Ennius.[3]

Semantic evolution

Nōs means “we, us”; it is also used indefinitely, for people in general, and by a single speaker or writer of himself, the “we” of formal or modest style.[2] Of the genitives, nostrī is usually objective and nostrum partitive (nēmō nostrum “none of us”); Plautus and Terence also have nostrōrum and nostrārum.[2][4]

Timeline

  • c. 235–200 BC – First found in Naevius.[1]
  • c. 250–184 BC – Plautus: nōs sumus “we're alone now”.[2][3]
  • 81–43 BC – Cicero: nōs, nōs, dīcō apertē, cōnsulēs dēsumus “it is we, we the consuls, who fail”.[4][3]

Meanings

Pronoun

  1. we, us.[2][4]
  2. We (people in general).[2]
  3. We, I (of the speaker or writer alone).[2]

Word family

References

  1. ^ a b c d e f g de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  2. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press

Descendants

Related etymologies

  • quis · also from Proto-Indo-European
  • cum · also from Proto-Indo-European
  • ego · also from Proto-Indo-European
  • is · also from Proto-Indo-European
  • hic · also from Proto-Indo-European
  • in · also from Proto-Indo-European
  • qui · also from Proto-Indo-European
  • et · also from Proto-Indo-European
Cite this entry

“Nos.” Etymologically, 18 Oct. 2026, etymologically.com/la/nos. Accessed 18 Oct. 2026.

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