LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Peirus

Peirus m sg (genitive Peirī)
Classical[ˈpe.ɪ.rʊs]Ecclesiastical[ˈpɛː.i.rus]

Meaning

  1. masculinesingularA river of Achaia, falling into the sea near Olenus

Declension

declension
formsingularplural
nominativePeirus—
genitivePeirī—
dativePeirō—
accusativePeirum—
ablativePeirō—
vocativePeire—

Origins

Borrowed from Ancient Greek Πεῖρος (Peîros).

Quick answers

What does Peirus mean in Latin?
Peirus, a proper noun, means “A river of Achaia, falling into the sea near Olenus”.
What is the genitive of Peirus?
The genitive singular is Peirī. Peirus is masculine, second declension.
How do you pronounce Peirus?
In classical Latin, [ˈpe.ɪ.rʊs]; in ecclesiastical (church) Latin, [ˈpɛː.i.rus].