LATIN DICTIONARYLexicon Latīnum
noun · femininethird declension

īris1

īris f (genitive īris or īridis)
Classical[ˈiː.rɪs]Ecclesiastical[ˈiː.ris]

Meaning

  1. rainbow
    et vīdī alium angelum fortem dēscendentem dē caelō amictum nūbe, et īris in capite eius, et faciēs eius erat ut sōl, et pedēs eius tamquam columna ignisLate 4th century, Jerome [et al.], transl., edited by Roger Gryson, Biblia Sacra: Iuxta Vulgatam Versionem (Vulgate), 5th edition, Stuttgart: Deutsche Bibelgesellschaft, published 2007, →ISBN, Apocalypsis [Revelation] 10:1:

Declension

declension
formsingularplural
nominativeīrisīrēs
īridēs
genitiveīris
īridis		īrium
īridum
dativeīrī
īridī		īribus
īridibus
accusativeīrem
īrim, īrin, īridem		īrēs
īrīs, īridēs
ablativeīre
īride		īribus
īridibus
vocativeīrisīrēs
īridēs

Īris, is or idis (acc. Irim, Verg. A. 4, 694: Irin, Ov. and App.), f., = Ἶρις,
I. the goddess of the rainbow, daughter of Thaumas and Electra, the sister of the Harpies, and the swift-footed messenger of the gods: Irim de caelo misit Saturnia Juno, Verg. A. 5, 606; 4, 700; 9, 803; Ov. M. 1, 271; 11, 631; 14, 830 al.— Voc. Irī, Ov. M. 11, 585.—
II. Transf.
A. The rainbow: Irin vulgo arcus esse aiunt, quando imago solis vel imago lunae umidam et cavam nubem densamque ad instar speculi colorat, etc., App. de Mundo, 16, p. 64, 10; cf. Sen. Q. N. 1, 3, 1 sqq.: iris erat in circuitu sedis, Vulg. Apoc. 4, 3; Amm. 20, 11, 26. —
B. A sweet-smelling plant, perh. the sword-lily, Plin. 21, 7, 19, § 40; Col. 12, 27; 12, 53, 2; Pall. 1, 37, 2. —
C. (Iris stone.) A precious stone, prob. a very pure six-sided prismatic crystal, Plin. 37, 9, 52, § 136. —
D. A river that flows into the Euxine Sea, Plin. 6, 3, 3, § 8; Val. Fl. 4, 600.

Origins

Borrowed from Ancient Greek ἶρις (îris).

proper noun · femininethird declension
Īris2
Īris f sg (genitive Īris or Īridis)
Classical[ˈiː.rɪs]Ecclesiastical[ˈiː.ris]

Meaning

  1. GreekIris (messenger of the gods)

Declension

declension
formsingularplural
nominativeĪris—
genitiveĪris
Īridis		—
dativeĪrī
Īridī		—
accusativeĪrem
Īrim, Īrin, Īridem		—
ablativeĪre
Īrī, Īride		—
vocativeĪri—

Charlton Lewis's shorter dictionary for students: the same scholarship in plain, modern definitions.

Īris idis (acc. Īrim, V., voc. Īri, O.), f
, Ἶρις, the goddess of the rainbow, messenger of the gods, V., O.

Origins

From Ancient Greek Ἶρις (Îris).

In the Academy Smith's classical dictionaries

Biography & mythologyIrisIris (Ἶρις), a daughter of Thaumas (whence she is called Thaumantias, Verg. A. 9.5) and Electra, and sister of the Harpies. (Hes. Th. 266, 780; Apollo…GeographyIrisIris (ὁ Ἴρις: Kasalmak), a considerable river of Pontus, which has its sources in the heights of Antitaurus in the south of Pontus. It flows at first …
proper noun · masculinethird declension
Iris3
Iris m sg (genitive Iris)
Classical[ˈɪ.rɪs]Ecclesiastical[ˈiː.ris]

Meaning

  1. masculinesingularOne of the most considerable rivers of Pontus, now the Yeşilırmak

Declension

declension
formsingularplural
nominativeIris—
genitiveIris
Īridis		—
dativeIrī
Īridī		—
accusativeIrem
Īrim		—
ablativeIre—
vocativeIris—

Origins

From Ancient Greek Ἴρις (Íris).

In the Academy Smith's classical dictionaries

Biography & mythologyIrisIris (Ἶρις), a daughter of Thaumas (whence she is called Thaumantias, Verg. A. 9.5) and Electra, and sister of the Harpies. (Hes. Th. 266, 780; Apollo…GeographyIrisIris (ὁ Ἴρις: Kasalmak), a considerable river of Pontus, which has its sources in the heights of Antitaurus in the south of Pontus. It flows at first …

Quick answers

What does īris mean in Latin?
īris, a noun, means “rainbow”.
What is the genitive of īris?
The genitive singular is īris. īris is feminine, third declension.
How do you pronounce īris?
In classical Latin, [ˈiː.rɪs]; in ecclesiastical (church) Latin, [ˈiː.ris].