LATIN DICTIONARYLexicon Latīnum
proper noun · masculinethird declension

Formiō

Formiō m sg (genitive Formiōnis)

Meaning

  1. A small river that flows into the Adriatic Sea between Tergeste and Aegida, now called Risano

Declension

declension
formsingularplural
nominativeFormiō—
genitiveFormiōnis—
dativeFormiōnī—
accusativeFormiōnem—
ablativeFormiōne—
vocativeFormiō—

formĭo, ōnis, m., v. phormio.

In the Academy Smith's classical dictionaries

GeographyFormioFormio (Φορμίων, Ptol. 3.1.27), a small river, now called the Risano, falling into the Adriatic Sea between Tergeste (Trieste) and Aegida (Capo d'Istr…

Quick answers

What does Formiō mean in Latin?
Formiō, a proper noun, means “A small river that flows into the Adriatic Sea between Tergeste and Aegida, now called Risano”.
What is the genitive of Formiō?
The genitive singular is Formiōnis. Formiō is masculine, third declension.