LATIN DICTIONARYLexicon Latīnum
noun · masculinethird declension

aethēr

aethēr m (genitive aetheris)
Classical[ˈae̯.tʰeːr]Ecclesiastical[ˈɛː.ter]
№ 851 of the 1,000 commonest wordsMille Verba core vocabulary

Meaning

  1. sky, ether (distinct in this sense from caelum (“heaven”), which is where the night's stars are, but not always distinguished from āēr; always distinct from the underworld)
  2. Greekthe substance filling the sky above the clouds (above the tropopause), distinct from āēr at cloud level and below
  3. Medieval LatinNew Latinether, quintessence

Latīnē defined in Latin in our graded readers

caelum summum et pūrum, super āera; sēdēs deōrum.
aethēr -eris m — in Mille Verba, Caelum et Tempestātēs

Declension

declension
formsingularplural
nominativeaethēraetherēs
genitiveaetherisaetherum
dativeaetherīaetheribus
accusativeaethera
aetherem
aetherēs
ablativeaethereaetheribus
vocativeaethēraetherēs

aether, ĕris (sometimes Gr.
I. gen. aetheros; acc. reg. Gr. aethera; and so Stat. S. 4, 225; id. Th. 3, 525; but poetry and prose of that per. also use aetherem, Tert. adv. Marc. 1, 13; cf. Serv. ad Verg. A. 1, 58; plur. in late Lat. aethera, Ven. Fort. Carm. 3, 9, 7), m., = αἰθήρ [v. aestas], the upper, pure, bright air, the ether.
I. In gen.
A. Lit. (opp. aër, the lower atmospheric air): restat ultimus omnia cingens et coërcens caeli complexus, qui idem aether vocatur, extrema ora et determinatio mundi; in quo cum admirabilitate maxima igneae formae cursus ordinatos definiunt, Cic. N. D. 2, 40: (astra) oriuntur in ardore caelesti, qui aether vel caelum nominatur, id. ib. 2, 15.—
B. Transf., in the poets,
1. Heaven: Id, quod nostri caelum memorant, Graii perhibent aethera, Pac. ap. Varr. L. L. 5, § 17 Müll. (Trag. Rel. p. 87 Rib.): famā super aethera notus, Verg. A. 1, 379: rex aetheris altus Juppiter, id. ib. 12, 140: regna profundi aetheros, Stat. Th. 3, 524. —
2. Air, in gen.: clamor ad caelum volvendus per aethera vagit, Enn. ap. Varr. L. L. 7, § 104 Müll. (Ann. v. 520 Vahl.): ignem ignes procudunt aetheraque aether, Lucr. 2, 1115: ferar per liquidum aethera Vates, * Hor. C. 2, 20, 2: nudoque sub aetheris axe, Verg. A. 2, 512; 8, 28: apes liquidum trans aethera vectae, id. ib. 7, 65; Sil. 2, 513 al.—*
3. In opp. to the lower world, the upper world, the earth: aethere in alto duros perferre labores, Verg. A. 6, 436.—*
4. The brightness surrounding a deity: aethere plena corusco Pallas, Val. Fl. 5, 183.—
II. Aether personified, son of Chaos, and father of Cœlum, Cic. N. D. 3, 17 al.; also Jupiter, Cic. Ac. 2, 41. So in the poets often: pater Aether, Lucr. 1, 250: pater omnipotens Aether, Verg. G. 2, 325.

Origins

Derived from Ancient Greek αἰθήρ (aithḗr, “sky; ether”).

Descendants
  • Catalanèter
  • Englishether
  • Englishæther
  • Englishaether
  • Englishaethyr
  • Englishethyr
  • Frenchéther
  • Romanianeterfrom French éther
  • Frenchæther
  • GermanÄther

Quick answers

What does aethēr mean in Latin?
aethēr, a noun, means “sky, ether (distinct in this sense from caelum (“heaven”), which is where the night's stars are, but not always distinguished from āēr; always distinct from the underworld); the substance filling the sky above the clouds”.
What is the genitive of aethēr?
The genitive singular is aetheris. aethēr is masculine, third declension.
How do you pronounce aethēr?
In classical Latin, [ˈae̯.tʰeːr]; in ecclesiastical (church) Latin, [ˈɛː.ter].