LATIN DICTIONARYLexicon Latīnum
proper noun · masculinethird declension

September1

September m sg (genitive Septembris)
Classical[sɛpˈtɛm.bɛr]Ecclesiastical[sepˈtɛm.ber]

Meaning

  1. masculinesingularSeptember
    Mando itaque vobis, ut octavo Idus Septembris sitis apud matrem vestram ecclesiam Cantuariensem, ad faciendum quod facere debetis, et ad suspiciendam consecrationem vestram.1938 [1108], “Ad Thomam electum archiepiscopum Eboracensem”, in S. Anselmi cantuariensis archiepiscopi opera omnia, volume 5th, page 390:

Declension

declension
formsingularplural
nominativeSeptember
Septembrius
—
genitiveSeptembris
Septembriī
—
dativeSeptembrī
Septembriō
—
accusativeSeptembrem
Septembrium
—
ablativeSeptembre
Septembriō
—
vocativeSeptember
Septembrie
—

September, bris, m. septem; as, October, Novem-ber, Decem-ber; cf. Varr. L. L. 6, § 34 Müll.,
I. the seventh month of the Roman year, reckoning from March, i. e. our ninth, September (consisting, as now, of thirty days); usually with mensis: mense Septembri, Cic. Att. 1, 1, 2; Suet. Aug. 31; 35; id. Tib. 26; id. Calig. 15; id. Dom. 13 fin.—Without mensis, Aus. Ecl. de Mens. Monos. 9; so id. ib. Dist. 18; id. ib. Quot. Kal. 8 al.—As adj., with other substantives, of September, September-: Kalendis Septembribus, Cic. Fam. 14, 22; XIX. Kal. Septemb. (Aug. 14); XIII. Kal. Septemb. (Aug. 20), etc.... pridie Kal. Septemb. (Aug. 31) ... Calendis Septemb.... quarto Nonas Septemb. (Sept. 2) ... Non. Septemb. (Sept. 5) ... VII. Idus Septemb. (Sept. 7) ... tertio Idus Septembris (Sept. 11) ... Id. Sept. (Sept. 13), Col. 11, 2, 57 sq.: Idibus Septembribus, Liv. 7, 3; so Suet. Caes. 83: Septembribus horis, in the (unhealthy) time of September, Hor. Ep. 1, 16, 16 Schneid.

Origins

Uncertain, perhaps from the haplology of earlier *septe(m)-mēmbris (“of or pertaining to the seventh month”), from *septe(m)-mēnzris, from septem (“seven”) + *mēnzris, from *mēnzlis, from *mēns (“month”) + *-lis; see septem, and mēnsis. Compare celeber, faenebris, fūnebris, lugubris, Mulciber, salūber and September. In the Roman calendar, the year began with Mārtius (“March”), and September was the seventh month of the year.

Elsewhere
  • EnglishSeptemberfrom Old French setembre
  • Frenchseptembre
  • Frenchsept.
  • GermanSeptemberfrom Middle High German september
  • GermanSep.from Middle High German september
  • Franco-Provençalseptembro
  • Normansetembrefrom Old French setembre
  • Normans'tembrefrom Old French setembre
  • Walloonsetimbefrom Old French setembre
  • ScotsSeptemberfrom Old French setembre
West Iberian
  • Portuguesesetembrofrom Old Galician-Portuguese setembro
  • Spanishsetiembre
  • Spanishseptiembre
  • Extremaduransetiembri
  • Aragonesesetiembre
  • Asturiansetiembrefrom Old Leonese setembre
  • Leonesesetiembrefrom Old Leonese setembre
  • MirandeseSetembrefrom Old Leonese setembre
  • Galiciansetembrofrom Old Galician-Portuguese setembro
  • Ladinoseptembre
Old Occitan
  • Catalansetembre
  • Occitansetembre
  • Gasconseteme
Italo-Dalmatian
  • Italiansettembre
  • Corsicansettembre
  • Corsicansittembri
  • Corsicansittembru
  • Tarantinosettèmmrefrom Neapolitan settiembre
  • MalteseSettembrufrom Sicilian sittèmmiru
Gallo-Italic
  • Emiliansetàmmber
  • Emiliansetèmber
  • Liguriansettembre
  • Lombardsetember
  • Piedmontesesëtembr
  • Piedmontesesëtèmber
Rhaeto-Romance
  • FriulianSetembar
  • Ladinsetember
  • Romanshsettember
  • Romanshsatember
Norman
  • Jerseyseptember
  • Guernseyséptember
  • Sarkseptãb

In English words that came into English from September

  • SeptemberSeptember
adjectivethird-declension three-termination adjective
September2
September (feminine Septembris)
Classical[sɛpˈtɛm.bɛr]Ecclesiastical[sepˈtɛm.ber]
Mille Verba core vocabulary

Meaning

  1. three terminationof September
    cum Romae a iudiciis forum refrixerit, excurremus mense Septembri legati ad Pisonem, ut ianuario revertamur.68 BCE – 44 BCE, Cicero, Epistulae ad Atticum I.1.10

Declension

singular
formmasculinefeminineneuter
nominativeSeptember
Septembrius
Septembris
Septembria
septembre
genitiveSeptembris
Septembriī
Septembris
Septembriae
Septembriī
dativeSeptembrī
Septembriō
Septembrī
Septembriae
Septembriō
accusativeSeptembremSeptembrem
Septembriam
septembre
ablativeSeptembrī
Septembriō
Septembrī
Septembriā
Septembriō
vocativeSeptember
Septembrie
Septembris
Septembria
septembre
plural
formmasculinefeminineneuter
nominativeSeptembrēs
Septembriī
Septembrēs
Septembriae
Septembria
genitiveSeptembrium
Septembriōrum
Septembrium
Septembriārum
septembria
Septembriōrum
dativeSeptembribus
Septembriīs
Septembribus
Septembriīs
Septembriīs
accusativeSeptembrēs
Septembrīs, Septembriōs
Septembrēs
Septembrīs, Septembriās
septembria
Septembria
ablativeSeptembribus
Septembriīs
Septembribus
Septembriīs
Septembriīs
vocativeSeptembrēs
Septembriī
Septembrēs
Septembriae
septembria
Septembria

Phrases from Meissner's Latin Phrase-Book

postridie qui fuit dies Non. Sept. (Nonarum Septembrium) (Att. 4. 1. 5)
on the day after, which was September 5th.

Origins

Uncertain, perhaps from the haplology of earlier *septe(m)-mēmbris (“of or pertaining to the seventh month”), from *septe(m)-mēnzris, from septem (“seven”) + *mēnzris, from *mēnzlis, from *mēns (“month”) + *-lis; see septem, and mēnsis. Compare celeber, faenebris, fūnebris, lugubris, Mulciber, salūber and September. In the Roman calendar, the year began with Mārtius (“March”), and September was the seventh month of the year.

Quick answers

What does September mean in Latin?
September, a proper noun, means “September”.
What is the genitive of September?
The genitive singular is Septembris. September is masculine, third declension.
How do you pronounce September?
In classical Latin, [sɛpˈtɛm.bɛr]; in ecclesiastical (church) Latin, [sepˈtɛm.ber].