LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Cōnstantīnus

Cōnstantīnus m sg (genitive Cōnstantīnī, feminine Cōnstantīna)
Classical[kõː.stanˈtiː.nʊs]Ecclesiastical[kon.stanˈtiː.nus]

Meaning

  1. a masculine cognomen and praenomen held by the Gens Flavia, most notably by Constantine the Great

Declension

declension
formsingularplural
nominativeCōnstantīnus—
genitiveCōnstantīnī—
dativeCōnstantīnō—
accusativeCōnstantīnum—
ablativeCōnstantīnō—
vocativeCōnstantīne—

Constantīnus, i, m., C. Flavius Vaferius Claudius Constantinus,
I. Constantine, a well-known Roman emperor, born A. D. 274, died A. D. 323, Eutr. 10, 2 sqq.; Lact. Mort. Pers. 18 sqq.; Amm. 21, 10, 8.—Hence, Constantīnĭānus, a, um, adj., of or pertaining to Constantine: genus, Amm. 27, 5, 1: lavacrum, id. 27, 3, 8.

Origins

  1. Proto-Indo-European*ḱe?
  2. Proto-Indo-European*ḱóm
  3. Proto-Italic*kom
  4. Proto-Italic*kom-
  5. Proto-Indo-European*steh₂-
  6. Proto-Indo-European*sth₂éh₁yeti
  7. Proto-Italic*staējō
  8. Proto-Italic*staēō
  9. Proto-Italic*komstaēō
  10. LatinCōnstantīnus

Proto-Indo-European *-onts Latin -ns Latin -ans Latin cōnstānsder. Latin Cōnstāns /Cōnstantius Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnus Latin Constantīnus Patronymic from Cōnstāns /Cōnstantius + -īnus. Compare Valentīnus.

Descendants
  • EnglishCostasfrom Ancient Greek Κωνστᾰντῖνος
  • CatalanConstantí
  • EnglishConstantine
  • FrenchConstantin
  • GermanKonstantin
  • GermanConstantin
  • ItalianCostantino
  • PortugueseConstantino
  • RomanianConstantin
  • RomanianCostin

In the Academy Smith's classical dictionaries

Biography & mythologyConstantinusConstantinus. the tyrant, emperor in Britain, Gaul, and Spain, was a common soldier in the Roman army stationed in Britain in the beginning of the fif…

Quick answers

What does Cōnstantīnus mean in Latin?
Cōnstantīnus, a proper noun, means “a masculine cognomen and praenomen held by the Gens Flavia, most notably by Constantine the Great”.
What is the genitive of Cōnstantīnus?
The genitive singular is Cōnstantīnī. Cōnstantīnus is masculine, second declension.
How do you pronounce Cōnstantīnus?
In classical Latin, [kõː.stanˈtiː.nʊs]; in ecclesiastical (church) Latin, [kon.stanˈtiː.nus].
Where does Cōnstantīnus come from?
Proto-Indo-European *ḱe? → Proto-Indo-European *ḱóm → Proto-Italic *kom → Proto-Italic *kom- → Proto-Indo-European *steh₂- → Proto-Indo-European *sth₂éh₁yeti → Proto-Italic *staējō → Proto-Italic *staēō → Proto-Italic *komstaēō → Latin Cōnstantīnus.