LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Petrus

Petrus m (genitive Petrī)
Classical[ˈpɛ.trʊs]Ecclesiastical[ˈpɛː.trus]

Meaning

  1. masculinePeter (biblical character).
    Tu es Petrus, et super hanc petram aedificabo Ecclesiam meam.You are Peter, and on this rock I will build My church.Late 4th century, Jerome [et al.], transl., edited by Roger Gryson, Biblia Sacra: Iuxta Vulgatam Versionem (Vulgate), 5th edition, Stuttgart: Deutsche Bibelgesellschaft, published 2007, →ISBN, Mattheum 16:18:
  2. masculinea male given name, equivalent to English Peter

Declension

declension
formsingularplural
nominativePetrus—
genitivePetrīPetrōrum
dativePetrōPetrīs
accusativePetrumPetrōs
ablativePetrōPetrīs
vocativePetre—

Origins

Borrowed from Ancient Greek Πέτρος (Pétros), from πέτρος (pétros), borrowed from Pre-Greek.

Ibero-Romance
  • PortuguesePedrofrom Old Galician-Portuguese Pedro
  • PortuguesePerofrom Old Galician-Portuguese Pedro
  • PortuguesePêrofrom Old Galician-Portuguese Pedro
  • SpanishPedro
  • SpanishPero
  • AsturianPedru
  • GalicianPedrofrom Old Galician-Portuguese Pedro
  • KaririPerófrom Old Galician-Portuguese Pedro
  • KimbunduPetolofrom Old Galician-Portuguese Pedro
  • Old TupiPerófrom Old Galician-Portuguese Pedro
Insular Romance
  • SardinianPedru
  • SardinianPerdu
  • SardinianPredu
Occitano-Romance
  • CatalanPere
  • OccitanPèire
Gallo-Romance
  • FrenchPierre
  • ItalianPierofrom French Pierre
Elsewhere
  • EnglishPeter
  • GermanPetrus; Peter
  • CzechPetrfrom Old Czech Petr
  • PolishPiotrfrom Old Czech Petr
  • SilesianPyjterfrom Old Czech Petr
  • KashubianPioterfrom Old Czech Petr
  • SlovincianPjôterfrom Old Czech Petr
  • DanishPeter; Peder
  • IrishPeadarfrom Old Irish Petur
  • ManxPeddyrfrom Old Irish Petur
Italo-Romance
  • ItalianPietro
  • CorsicanPetru
  • SicilianPetru
Rhaeto-Romance
  • FriulianPieri
  • RomanshPeider
Gallo-Italic
  • LigurianPê
  • LigurianPêo
  • LombardPederfrom Old Lombard Petro
  • PiedmontesePèiro
  • PiedmontesePero

In the Academy Smith's classical dictionaries

Biography & mythologyPetrusPetrus (Πέτρος), literary and ecclesiastical. 1. Of ALEXANDRIA (1). Petrus or Peter, the first of that name in the st of the bishops of Alexandria, su…

Quick answers

What does Petrus mean in Latin?
Petrus, a proper noun, means “Peter (biblical character).; a male given name, equivalent to English Peter”.
What is the genitive of Petrus?
The genitive singular is Petrī. Petrus is masculine, second declension.
How do you pronounce Petrus?
In classical Latin, [ˈpɛ.trʊs]; in ecclesiastical (church) Latin, [ˈpɛː.trus].