unus

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Latin[edit]

Latin cardinal numbers
I II  > 
    Cardinal : ūnus
    Ordinal : prīmus
    Adverbial : semel
    Multiplier : simplex
    Distributive : singulī
Latin Wikipedia article on ūnus

Alternative forms[edit]

  • Symbol: I

Etymology[edit]

From Old Latin oinos, from Proto-Italic *oinos, from Proto-Indo-European *óynos ‎(one, single). Cognates include Ancient Greek οἶος ‎(oîos), Sanskrit एक ‎(éka), Old Church Slavonic ѥдинъ ‎(jedinŭ), and Old English ān (English one and an).

Pronunciation[edit]

Numeral[edit]

ūnus m ‎(feminine ūna, neuter ūnum); irregular first/second declension

  1. (cardinal) 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[edit]

See Appendix:Latin cardinal numbers

Derived terms[edit]

Article[edit]

unus

  1. (Medieval Latin) an; a

Inflection[edit]

First/second declension, with the genitive in -īus and the dative in . Note that ūnus has no plural.

Number Singular
Case/Gender Masculine Feminine Neuter
nominative ūnus ūna ūnum
genitive ūnīus ūnīus ūnīus
dative ūnī ūnī ūnī
accusative ūnum ūnam ūnum
ablative ūnō ūnā ūnō
vocative ūne ūna ūnum

NB: There is no plural for the article unus, una or unum.

Descendants[edit]

  • Galician: un
  • Ido: un
  • Interlingua: un
  • Istriot: oûn
  • Istro-Romanian: ur
  • Italian: uno, un
  • Ladin: un
  • Lombard: vun
  • Novial: un
  • Occitan: un