LATIN DICTIONARYLexicon Latīnum
proper noun · femininesecond declension

Ios

Ios f sg (genitive Iī)
Classical[ˈi.ɔs]Ecclesiastical[ˈiː.os]

Meaning

  1. femininesingularIos

Declension

declension
formsingularplural
nominativeIos—
genitiveIī—
dativeIō—
accusativeIon—
ablativeIō—
vocativeIe—

Ĭos, i, f., = Ἴος,
I. a small island of the Sporades, in the Ægean Sea, now Nio, Mel. 2, 7, 11; Plin. 4, 12, 23, § 69.—ĭētae, ārum, m., = Ἰῆται, the inhabitants of Ios, Varr. ap. Gell. 3, 11, 6.

Origins

Borrowed from Ancient Greek Ἴος (Íos).

In the Academy Smith's classical dictionaries

GeographyIosIos (Ἴος: Eth. Ἰήτης, Eth. Ἰέτης), an island in the Aegaean sea, one of the Sporades, and falsely called by Stephanus one of the Cyclades, lay north o…

Quick answers

What does Ios mean in Latin?
Ios, a proper noun, means “Ios”.
What is the genitive of Ios?
The genitive singular is Iī. Ios is feminine, second declension.
How do you pronounce Ios?
In classical Latin, [ˈi.ɔs]; in ecclesiastical (church) Latin, [ˈiː.os].