LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Arthurus

Arthurus m (genitive Arthurī)
Classical[ˈar.tʰʊ.rʊs]Ecclesiastical[ˈar.tu.rus]

Meaning

  1. Medieval Latinmasculinea male given name from Old Welsh, equivalent to English Arthur

Declension

declension
formsingularplural
nominativeArthurusArthurī
genitiveArthurīArthurōrum
dativeArthurōArthurīs
accusativeArthurumArthurōs
ablativeArthurōArthurīs
vocativeArthureArthurī

Origins

Likely of Old Welsh origin; if so, then ultimately from Proto-Celtic *artos (“bear”). See the English entry Arthur for more.

Descendants
  • CatalanArtur
  • EnglishArthur
  • FrenchArthur
  • ItalianArturo
  • PortugueseArturo
  • PortugueseArtur
  • SpanishArturo
  • FriulianArtûr

Quick answers

What does Arthurus mean in Latin?
Arthurus, a proper noun, means “a male given name from Old Welsh, equivalent to English Arthur”.
What is the genitive of Arthurus?
The genitive singular is Arthurī. Arthurus is masculine, second declension.
How do you pronounce Arthurus?
In classical Latin, [ˈar.tʰʊ.rʊs]; in ecclesiastical (church) Latin, [ˈar.tu.rus].