LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

Iānuārius1

Iānuārius (feminine Iānuāria, neuter Iānuārium)
Classical[jaː.nuˈaː.ri.ʊs]Ecclesiastical[ja.nuˈaː.ri.us]
Mille Verba core vocabulary

Meaning

  1. adjectiveof January

Declension

singular
formmasculinefeminineneuter
nominativeIānuāriusIānuāriaIānuārium
genitiveIānuāriīIānuāriaeIānuāriī
dativeIānuāriōIānuāriaeIānuāriō
accusativeIānuāriumIānuāriamIānuārium
ablativeIānuāriōIānuāriāIānuāriō
vocativeIānuārieIānuāriaIānuārium
plural
formmasculinefeminineneuter
nominativeIānuāriīIānuāriaeIānuāria
genitiveIānuāriōrumIānuāriārumIānuāriōrum
dativeIānuāriīsIānuāriīsIānuāriīs
accusativeIānuāriōsIānuāriāsIānuāria
ablativeIānuāriīsIānuāriīsIānuāriīs
vocativeIānuāriīIānuāriaeIānuāria

Phrases from Meissner's Latin Phrase-Book

Kalendis Ianuariis Romā (dabam)
Rome, January 1st.

Jānŭārĭus, a, um, adj. id.,
I. of or belonging to Janus.—Esp.,
A. Januarius mensis, the month of January: auctio constituta in mensem Januarium, Cic. Agr. 1, 2, 4: Januario mense cura ut Romae sis, id. Att. 1, 2, 2.—Also, subst.: Jānŭārĭus, i, m. (sc. mensis), January: a. d. VII. Idus Januarii, Caes. B. C. 1, 5; Hirt. B. G. 8, 2.—
B. Kalendae Januariae, the first day of January. This was a festival on which the Romans presented their good wishes to each other It was also regarded as a fortunate day on which to begin any undertaking, Cic. Agr. 1, 8, 26; 2, 3, 6; 2, 3, 8; Ov. F. 1, 64; Col. 11, 2: Nonae Januariae, Caes. B. C. 3, 6; Plin. 8, 45, 70, § 177.

Origins

Proto-Indo-European *yeh₂-der. Proto-Indo-European *yeh₂-no- Proto-Italic *jānos Latin iānus Latin Iānus Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -ārius Latin Iānuārius From Iānus (“Janus”) + -ārius.

proper noun · masculinesecond declension
Iānuārius2
Iānuārius m (genitive Iānuāriī or Iānuārī)
Classical[jaː.nuˈaː.ri.ʊs]Ecclesiastical[ja.nuˈaː.ri.us]

Meaning

  1. a male given name

Declension

declension
formsingularplural
nominativeIānuārius—
genitiveIānuāriī
Iānuārī		—
dativeIānuāriō—
accusativeIānuārium—
ablativeIānuāriō—
vocativeIānuārī—

Origins

Proto-Indo-European *yeh₂-der. Proto-Indo-European *yeh₂-no- Proto-Italic *jānos Latin iānus Latin Iānus Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -ārius Latin Iānuārius From Iānus (“Janus”) + -ārius.

Elsewhere
  • Romanianianuariefrom Ancient Greek Ἰανουάριος
  • Romanianghenarfrom Byzantine Greek Γεννάριος
  • GermanJanuar
  • GermanJan.
  • EnglishJanuaryfrom Middle English Januarie
  • GermanJännerfrom Middle High German jenner
  • GermanJennerfrom Middle High German jenner
  • Abkhazажьырныҳәа
  • AfrikaansJanuarie
  • Albanianjanar
Northern Gallo-Romance
  • Frenchjanvierfrom Old French janvier
  • Frenchjanv.from Old French janvier
  • Franco-Provençaljanviér
  • Haitian Creolejanvyefrom Old French janvier
  • Mauritian Creolejanviefrom Old French janvier
  • Fulasanwiyefrom Old French janvier
  • Iranian Persianژانویهfrom Old French janvier
  • Ladinojanviyefrom Old French janvier
  • Malagasyzanviefrom Old French janvier
  • South Azerbaijaniژانویهfrom Old French janvier
Ibero-Romance
  • Portuguesejaneirofrom Old Galician-Portuguese janeyro
  • Spanishenerofrom Old Spanish janero
  • Galicianxaneirofrom Old Galician-Portuguese janeyro
Late Latin
  • unknownienuārius
Padanian
  • Romanshschaner
Serbo-Croatian
  • Cyrillic scriptјануар
  • Latin scriptjanuar

In English words that came into English from Iānuārius

  • JanuaryIānuārius

Quick answers

What does Iānuārius mean in Latin?
Iānuārius, a adjective, means “of January”.
How do you pronounce Iānuārius?
In classical Latin, [jaː.nuˈaː.ri.ʊs]; in ecclesiastical (church) Latin, [ja.nuˈaː.ri.us].