LATIN DICTIONARYLexicon Latīnum
proper noun · femininefirst declension

Formiae

Formiae f pl (genitive Formiārum)
Classical[ˈfɔr.mi.ae̯]Ecclesiastical[ˈfɔr.mi.e]

Meaning

  1. feminineplurala city in Latium situated on the coast, between Fundi and Minturnae, now Formia

Declension

declension
formsingularplural
nominative—Formiae
genitive—Formiārum
dative—Formiīs
accusative—Formiās
ablative—Formiīs
vocative—Formiae
locative—Formiīs

Formĭae, ārum, f. for sformiae, σϝορμιαι, from old form Ὁρμίαι, place of anchorage; cf. ὅρμος,
I. a very ancient city of Latium, on the borders of Campania, the fabled seat of the Laestrygones, now Mola di Gaeta, Mel. 2, 4, 9; Plin. 3, 5, 9, § 59; Cic. Att. 2, 13, 2; id. Fam. 16, 12, 5; id. Q. Fr. 1, 1, 6, § 17; Hor. C. 3, 17, 6.—
II. Derivv.
A. Formĭānus, a, um, adj., of or belonging to Formiae, Formian: colles, Hor. C. 1, 20, 11: saxa, Liv. 22, 16, 4: fundus P. Rutilii, Cic. N. D. 3, 35, 86: dies, spent in Formiae, Mart. 10, 30, 26.—
B. Subst.
1. Formĭ-ānum, i, n., a villa in Formiae: of Cicero, Cic. Att. 4, 2, 7; id. Fam. 16, 10, 1; ib. 12, 6; of C. Laelius, id. Rep. 1, 39; of Dolabella, id. Att. 15, 13, 5.—
2. Formĭāni, ōrum, m., the inhabitants of Formiae, Formians, Cic. Att. 2, 14, 2.

Origins

Borrowed from Ancient Greek Ὁρμίαι (Hormíai, “place of anchorage”), from ὅρμος (hórmos, “cord, chain; anchorage”).

In the Academy Smith's classical dictionaries

GeographyFormiaeFormiae (Φορμίαι: Eth. Formianus: Mola di Gaëta), a city of Latium on. the coast of the Sinus Caiëtanus, and situated on the Via Appia, between Fundi …

Quick answers

What does Formiae mean in Latin?
Formiae, a proper noun, means “a city in Latium situated on the coast, between Fundi and Minturnae, now Formia”.
What is the genitive of Formiae?
The genitive singular is Formiārum. Formiae is feminine, first declension.
How do you pronounce Formiae?
In classical Latin, [ˈfɔr.mi.ae̯]; in ecclesiastical (church) Latin, [ˈfɔr.mi.e].