LATIN DICTIONARYLexicon Latīnum
noun · masculinesecond declension

isthmus1

isthmus m (genitive isthmī)
Classical[ˈɪstʰ.mʊs]Ecclesiastical[ˈist.mus]

Meaning

  1. masculinea strip of land between two seas; an isthmus
  2. masculinepoetica strait

Declension

declension
formsingularplural
nominativeisthmusisthmī
genitiveisthmīisthmōrum
dativeisthmōisthmīs
accusativeisthmumisthmōs
ablativeisthmōisthmīs
vocativeisthmeisthmī

Isthmus or -os, i, m., = Ἰσθμός,
I. a strip of land between two seas, an isthmus, Mel. 1, 18; 2, 2.—
B. Esp., the Isthmus of Corinth, where the Isthmian games were celebrated, Caes. B. C. 3, 55, 2; Liv. 45, 28, 2 sq.; Plin. 4, 1, 5, § 12; Cic. Fat. 4, 7; Suet. Ner. 19; Mel. 2, 3; Ov. M. 7, 406. —
C. Transf., poet., a strait, viz., the Dardanelles, Prop. 3, 21, 1 (4, 22, 2).—
II. Derivv.
A. Isthmĭus, a, um, adj., = Ἴσθμιος, of or belonging to the Isthmus, Isthmian: ludi, Liv. 33, 32: labor, Hor. C. 4, 3, 3: Dione, i. e. Venus, who had a temple at Corinth, Stat. S. 2, 7, 2.—Esp. freq. subst.: Isthmĭa, ōrum, n., = τὰ Ἴσθμια, the Isthmian games, celebrated every five years at the Isthmus of Corinth, the victors in which received a pine garland, Liv. 33, 32; Curt. 4, 5, 8; cf. Plin. 15, 10, 9, § 36.—
B. Isthmĭăcus (Isth-mĭcus), a, um, adj., of or belonging to the Isthmus, Isthmian: harena, Stat. Th. 6, 557: litus, Claud. IV. Cons. Hon. 463: coloni, i. e. Syracusans (as a colony of Corinth), Sil. 14, 341; cf. favillae, Stat. S. 2, 2, 68.—Form Isthmicus, Mel. 2, 3; Val. Max. 4, 8, 5.

Origins

  1. Proto-Indo-European*h₁ey-
  2. Proto-Indo-European*h₁éyti
  3. Proto-Hellenic*éimi
  4. Ancient Greek εἶμῐ(eîmĭ)
  5. Latinisthmus

Ancient Greek ῐ̓σθμός (ĭsthmós)bor. Latin isthmus Borrowing from Ancient Greek ῐ̓σθμός (ĭsthmós, “neck, narrow passage”), possibly from εἶμῐ (eîmĭ, “to go”).

Descendants
  • Catalanistme
  • Englishisthmus
  • Frenchisthme
  • Romanianistmfrom French isthme
  • GermanIsthmus
  • Italianistmo
  • Portugueseistmo
  • Spanishistmo
  • Asturianismu
  • Dutchistmus

In English words that came into English from isthmus

  • isthmusisthmus
proper noun · masculinesecond declension
Isthmus2
Isthmus m sg (genitive Isthmī)
Classical[ˈɪstʰ.mʊs]Ecclesiastical[ˈist.mus]

Meaning

  1. masculinesingularthe Isthmus of Corinth
  2. masculinesingularthe Dardanelles

Declension

declension
formsingularplural
nominativeIsthmus—
genitiveIsthmī—
dativeIsthmō—
accusativeIsthmum—
ablativeIsthmō—
vocativeIsthme—

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

Isthmus or -os ī, m
, Ἰστημός, the Isthmus of Corinth, Cs., C., L., O.

Origins

Borrowing from Ancient Greek Ῐ̓σθμός (Ĭsthmós), from ῐ̓σθμός (ĭsthmós, “neck of land between two seas”).

Quick answers

What does isthmus mean in Latin?
isthmus, a noun, means “a strip of land between two seas; an isthmus”.
What is the genitive of isthmus?
The genitive singular is isthmī. isthmus is masculine, second declension.
How do you pronounce isthmus?
In classical Latin, [ˈɪstʰ.mʊs]; in ecclesiastical (church) Latin, [ˈist.mus].
Where does isthmus come from?
Proto-Indo-European *h₁ey- → Proto-Indo-European *h₁éyti → Proto-Hellenic *éimi → Ancient Greek εἶμῐ (eîmĭ) → Latin isthmus.