unus

Latin

**Latin numbers ^(edit)**
		10^{[a], [b]}
	← 0	I 1	2 →	10 → ^{[a], [b]}
Cardinal: ūnus Ordinal: prīmus Adverbial: semel Proportional: simplus Multiplier: simplex Distributive: singulus Collective: ūniō Fractional: integer

Alternative forms

Symbol: I

Etymology

From Old Latin oinos, from Proto-Italic *oinos, from Proto-Indo-European *h₁óynos (“one, single”).

Cognates include Ancient Greek οἶος (oîos), Sanskrit एक (éka), Old Church Slavonic ѥдинъ (jedinŭ), Old Irish óen, and Old English ān (English one and an).

Pronunciation

(Classical Latin) IPA^(key): /ˈuː.nus/, [ˈuːnʊs̠]
(modern Italianate Ecclesiastical) IPA^(key): /ˈu.nus/, [ˈuːnus]

Adjective

ūnus (feminine ūna, neuter ūnum); first/second-declension adjective (pronominal)

one, single
ad unum ― unanimously, universally, widely
alone

Numeral

ūnus (feminine ūna, neuter ūnum); first/second-declension numeral (pronominal)

one; 1
- 8 CE, Ovid, Metamorphoses 6.644–645:
  satis illi ad fata vel unum vulnus erat: iugulum ferro Philomela resolvit
  Sufficient was this one wound to kill; but Philomela also cut open the throat
- 405 CE, Jerome, Vulgate Nehemiae.1.2:
  et venit Anani unus de fratribus meis ipse et viri ex Iuda et interrogavi eos de Iudaeis qui remanserant et supererant de captivitate et de Hierusalem
  and Hanani came, one of my brethren, he and certain men of Judah; and I asked them concerning the Jews that had escaped, which were left of the captivity, and concerning Jerusalem
- 6th c. — Boethius, Commentarium in librum Aristotelis Peri hermeneias primae editionis, Book I, section 5
  In summam igitur ūnārum ōrātiōnum aliae sunt significātiōne ūnae, aliae coniūnctiōne.
  "In summary therefore, of one theme others are (by signification) one, some with connections."

Usage notes

The plural forms are only used with pluralia tantum. For more information see Appendix:Latin cardinal numbers.

Declension

First/second-declension adjective (pronominal).

Case / Gender	Masculine	Feminine	Neuter	Masculine	Feminine	Neuter
Number	Singular			Plural
Nominative	ūnus	ūna	ūnum	ūnī	ūnae	ūna
Genitive	ūnī̆us			ūnōrum	ūnārum	ūnōrum
Dative	ūnī			ūnīs
Accusative	ūnum	ūnam	ūnum	ūnōs	ūnās	ūna
Ablative	ūnō	ūnā	ūnō	ūnīs
Vocative	ūne	ūna	ūnum	ūnī	ūnae	ūna

Sg.gen. ūnī, sg.dat. ūnō, ūnae appear in earlier writers.

Derived terms

Related terms

nōn
ūllus

Article

ūnus

(Medieval Latin) a, an

Declension

First/second-declension adjective (pronominal), singular only.

Number	Singular
Case / Gender	Masculine	Feminine	Neuter
Nominative	ūnus	ūna	ūnum
Genitive	ūnī̆us
Dative	ūnī
Accusative	ūnum	ūnam	ūnum
Ablative	ūnō	ūnā	ūnō
Vocative	ūne	ūna	ūnum

Derived terms

*alicūnus (Vulgar Latin)
nec ūnus

Descendants

Balkan Romance:
- Aromanian: unu, un
- Istro-Romanian: un, ur
- Megleno-Romanian: un
- Romanian: unu, un
Dalmatian:
- join
Italo-Romance:
- Corsican: unu
- Italian: uno, un
- Neapolitan: uno, nu
- Sicilian: unu, un, nu, 'n
North Italian:
- Emilian: unu
- Istriot: oûn
- Lombard: vun
- Romagnol: un
- Venetan: uno, un, on
Rhaeto-Romance:
- Friulian: un
- Ladin: un
- Romansch: in, egn, ün
Gallo-Romance:
- Franco-Provençal: un, yon
- Old French: un
  - Middle French: un, ung
    - French: un
  - Norman: un, iun (Guernsey)
  - Walloon: un
Occitano-Romance:
- Catalan: un
- Occitan: un
Ibero-Romance:
- Asturian: unu
- Mirandese: un
- Old Galician-Portuguese: ũu
  - Fala: un
  - Galician: un
  - Macanese: (from ũa) unga, ung'a
  - Portuguese: um (see there for further descendants)
- Spanish: uno, un
Insular Romance:
- Sardinian: unu

References

“unus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“unus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
unus in Enrico Olivetti, editor (2003-2024), Dizionario Latino, Olivetti Media Communication
unus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎^[1], London: Macmillan and Co.
- a day's journey: iter unius diei or simply diei
- to collect together at one spot: in unum locum convenire, confluere
- one or two days: unus et alter dies
- one, two, several days had passed, intervened: dies unus, alter, plures intercesserant
- to take in everything at a glance: omnia uno aspectu, conspectu intueri
- one thing still makes me hesitate: unus mihi restat scrupulus (Ter. Andr. 5. 4. 37) (cf. too religio, sect. XI. 2)
- to collect, accumulate instances: multa exempla in unum (locum) colligere
- to choose one from a large number of instances: ex infinita exemplorum copia unum (pauca) sumere, decerpere (eligere)
- Solon, one of the seven sages: Solo, unus de septem (illis)
- all agree on this point: omnes (uno ore) in hac re consentiunt
- (ambiguous) unanimously: una voce; uno ore
- unanimously: uno, communi, summo or omnium consensu (Tusc. 1. 15. 35)
- to give a general idea of a thing: in uno conspectu ponere aliquid
- to give a general idea of a thing: sub unum aspectum subicere aliquid
- to have a general idea of a thing: uno conspectu videre aliquid
- to say not a syllable about a person: ne verbum (without unum) quidem de aliquo facere
- one of the crowd; a mere individual: unus de or e multis
- an ordinary, average Roman citizen: unus e togatorum numero
- monarchy: imperium singulare, unius dominatus, regium imperium
- to concentrate all the troops at one point: cogere omnes copias in unum locum
- they perished to a man: ad unum omnes perierunt
- I will only say this much..: tantum or unum illud or hoc dico
- (ambiguous) to travel together: una iter facere
- (ambiguous) all are unanimous: una et consentiens vox est
- (ambiguous) unanimously: una voce; uno ore
unus in Ramminger, Johann (2016 July 16 (last accessed)) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700‎^[2], pre-publication website, 2005-2016

Yakan

Noun

unus

famine