LATIN DICTIONARYLexicon Latīnum
proper nounthird declension

Arx Vorthēnsis

Arx Vorthēnsis f sg (genitive Arcis Vorthēnsis)
Classical[ˈarks wɔrˈtʰẽː.sɪs]Ecclesiastical[ˈarks vorˈtɛn.sis]

Meaning

  1. New LatinFort Worth (a city in Texas)
    Statuimus demum ut dioecesis Dallasensis – Arcis Vorthensis, eius Episcopus, templum cathedrale, cetera uno Dallasensis cognomine appellentur ab urbe scilicet Dallas, in qua Episcopus commorabitur cathedramque habebit, nempe in templo Sacratissimo Cordi Iesu dicato.1969 August 9, Paul VI, Apostolic Constitution Arcis Vorthensis:

Declension

declension
formsingularplural
nominativeArx Vorthēnsis—
genitiveArcis Vorthēnsis—
dativeArcī Vorthēnsī—
accusativeArcem Vorthēnsem—
ablativeArce Vorthēnsī—
vocativeArx Vorthēnsis—
locativeArcī Vorthēnsī
Arce Vorthēnsī		—

Origins

Partial calque of English Fort Worth, with the suffix -ēnsis.

Quick answers

What does Arx Vorthēnsis mean in Latin?
Arx Vorthēnsis, a proper noun, means “Fort Worth (a city in Texas)”.
What is the genitive of Arx Vorthēnsis?
The genitive singular is Arcis Vorthēnsis. Arx Vorthēnsis is third declension.
How do you pronounce Arx Vorthēnsis?
In classical Latin, [ˈarks wɔrˈtʰẽː.sɪs]; in ecclesiastical (church) Latin, [ˈarks vorˈtɛn.sis].