LATIN DICTIONARYLexicon Latīnum
proper noun · neutersecond declension

Alsium

Alsium n sg (genitive Alsiī or Alsī)

Meaning

  1. neutersingularan ancient city in Etruria, in modern Italy

Declension

declension
formsingularplural
nominativeAlsium—
genitiveAlsiī
Alsī
—
dativeAlsiō—
accusativeAlsium—
ablativeAlsiō—
vocativeAlsium—
locativeAlsiī—

Origins

Of uncertain origin, but traditionally said to be founded by the Pelasgians. Possibly from Ancient Greek ἅλς (háls, “salt, sea”), but the Pelasgian language should have retained the initial s in its source (Proto-Indo-European *sḗh₂l). Also compare the Venetan river name Alsa, which could be related.

In the Academy Smith's classical dictionaries

Quick answers

What does Alsium mean in Latin?
Alsium, a proper noun, means “an ancient city in Etruria, in modern Italy”.
What is the genitive of Alsium?
The genitive singular is Alsiī. Alsium is neuter, second declension.