LATIN DICTIONARYLexicon Latīnum
proper noun · neutersecond declension

Helvillum

Helvillum n sg (genitive Helvillī)

Meaning

  1. neutersingulara town in Umbria situated near Forum Flaminii and Nuceria

Declension

declension
formsingularplural
nominativeHelvillum—
genitiveHelvillī—
dativeHelvillō—
accusativeHelvillum—
ablativeHelvillō—
vocativeHelvillum—
locativeHelvillī—

In the Academy Smith's classical dictionaries

GeographyHelvillumHelvillum a town of Umbria, on the Via Flaminia, known only from the Itineraries, which place it 27 M. P. from Forum Flaminii, or 15 M. P. from Nuceri…

Quick answers

What does Helvillum mean in Latin?
Helvillum, a proper noun, means “a town in Umbria situated near Forum Flaminii and Nuceria”.
What is the genitive of Helvillum?
The genitive singular is Helvillī. Helvillum is neuter, second declension.