LATIN DICTIONARYLexicon Latīnum
proper nounthird declension

Mare Rubrum

Mare Rubrum n sg (genitive Maris Rubrī)
Classical[ˈma.rɛ ˈrʊ.brũː]Ecclesiastical[ˈmaː.re ˈruː.brum]

Meaning

  1. neutersingularthe Red Sea

Declension

declension
formsingularplural
nominativeMare Rubrum—
genitiveMaris Rubrī—
dativeMarī Rubrō—
accusativeMare Rubrum—
ablativeMarī Rubrō—
vocativeMare Rubrum—

Origins

Calque of Ancient Greek Ἐρυθρᾱ̀ θάλασσα (Eruthrā̀ thálassa)

Quick answers

What does Mare Rubrum mean in Latin?
Mare Rubrum, a proper noun, means “the Red Sea”.
What is the genitive of Mare Rubrum?
The genitive singular is Maris Rubrī. Mare Rubrum is third declension.
How do you pronounce Mare Rubrum?
In classical Latin, [ˈma.rɛ ˈrʊ.brũː]; in ecclesiastical (church) Latin, [ˈmaː.re ˈruː.brum].