LATIN DICTIONARYLexicon Latīnum
proper noun · neutersecond declension

Asīsium

Asīsium n sg (genitive Asīsiī or Asīsī)

Meaning

  1. a town in Umbria situated between Perusia and Fulginia, now Assisi

Declension

declension
formsingularplural
nominativeAsīsium—
genitiveAsīsiī
Asīsī		—
dativeAsīsiō—
accusativeAsīsium—
ablativeAsīsiō—
vocativeAsīsium—
locativeAsīsiī—

In the Academy Smith's classical dictionaries

GeographyAsisiumAsisium (Ἀσίσιον: but Αἰσἰσιον, Ptol. 3.1.53, and Aff Αἴσιον in Strab. v. p.227, is probably a corruption of the same name: Eth. Ἀσισἰνος Asisinas,--a…

Quick answers

What does Asīsium mean in Latin?
Asīsium, a proper noun, means “a town in Umbria situated between Perusia and Fulginia, now Assisi”.
What is the genitive of Asīsium?
The genitive singular is Asīsiī. Asīsium is neuter, second declension.