LATIN DICTIONARYLexicon Latīnum
noun · masculinethird declension

āēr

āēr m or f (genitive āeris or āeros)
Classical[ˈaː.eːr]Ecclesiastical[ˈaː.er]
№ 845 of the 1,000 commonest wordsMille Verba core vocabulary

Meaning

  1. air
  2. the troposphere (situated below aethēr)
    […] Stiriaque impexis induruit horrida barbis,[…] hoarfrost clings to their uncombed, shaggy beards while the whole sky keeps on shedding snow.c. 37 BCE – 30 BCE, Vergilius, Georgicon 3.366–367

Latīnē defined in Latin in our graded readers

quod circum nōs est et spīrāmus; āera nōn vidēmus, sed sentīmus.
āēr āeris m — in Mille Verba, Caelum et Tempestātēs

Choosing the right word Döderlein's Latin Synonyms

Anima · Aer · Aura · Spiritus · Sublime

Anima and aër denote ‘air’ as an element, like ἀήρ, and anima (ἄνεμος), in opp. to terra, mare, ignis; but aër, a learned term (ἀήρ, from ἀείρω?) in opp. to æther; aura and spiritus denote ‘air’ when put in motion; aura (αὔρα, from ἀέσαι, or from ἀεῖραι), the gently waving and fanning air; spiritus, the streaming and breath-like air, like πνεῦμα; lastly, sublime (from sublevare?), the air that hovers over us, simply in a local relation, in opp. to humus, like μετάρσιον, μετέωρον. (v. 92.)

Declension

declension
formsingularplural
nominativeāērāerēs
āera
genitiveāeris
āeros		āerum
dativeāerīāeribus
accusativeāera
āerem		āerēs
āera
ablativeāereāeribus
vocativeāērāerēs
āera

Phrases from Meissner's Latin Phrase-Book

aer qui est terrae proximus
the atmosphere.
aer calore et frigore temperatus
temperate climate.
aer terrae circumiectus or circumfusus
the atmosphere.

āēr, āĕris, m. (in Enn. once
I. fem., Gell. 13, 20, 14, as also ἀήρ in Gr., in the earliest per, was fem., Gr. gen. aëros, Stat. Th. 2, 693; Gr. acc. aëra, Cic., Sen., Plin.; pure Lat. form, āĕrem, Varr. L. L. 5, 10, 65; Cato ap. Serv ad Verg. A. 10, 184; Plin. 18, 1, 1, § 3; plur nom. and acc. āĕres, Vitr. 11; later āĕra, Ven. Fort. Carm 9, 1, 141, dat. āĕribus, Lucr. 4, 289; 5, 643), = ἀηρ, the air, properly the lower atmosphere (in distinction from aether, the upper pure air): istic est is Juppiter quem dico, quem Graeci vocant Aërem, qui ventus est et nubes, imber postea, Atque ex imbre frigus, ventus post fit, aër denuo, Enn. ap. Varr L. L. 5, § 65 Müll. (Epicharm. v. 9 Vahl.,: terra circumfusa undique est hac animall spirabilique naturā, cui nomen est aër, Graecum illud quidem, sed perceptum jam tamen usu a nostris, tritum est enim pro Latino, Cic. N. D. 2, 36, 91: itaque aër et ignis et aqua et terra primae sunt, id. Ac. 1, 7, 26: Anaximenes aëra Deum statuit, id. N. D. 1, 10: aërem in perniciem vertere, Plin. 18, 1, 1, § 3 al.—Also in plur.: aëribus binis, Lucr 4, 291: aëres locorum salubres aut pestilentes, Vitr 1, 1 fin.—
II. Transf.
A. Poet.: aër summus arboris, the airy summit, for the highest point, Verg. G. 2, 123; cf. Juv. 6, 99.—
B. Also poet. for a cloud, vapor, mist: Venus obscuro gradientes aëre sepsit, Verg. A. 1, 411: aëre septus, Val Fl. 5,401—
C. With limiting adj. = the weather: crassus, Cic. Ac. 2, 25, 81. fusus et extenuatus, id. N. D. 2, 39 purus et tenuis, id. ib. 2, 16 temperatus, id. Div 2, 42
1. † aera (dissyl.), ae, f., = αἰρα, a weed among grain; darnel, tare, or cockle, Lolium temulentum, Linn.; Plin. 18, 17, 44, § 156.

Origins

  1. Proto-Indo-European*h₂ews-
  2. Proto-Indo-European*h₂ewsér
  3. Proto-Hellenic*auhḗr
  4. Latināēr

Ancient Greek ᾱ̓ήρ (āḗr)bor. Latin āēr Borrowed from Ancient Greek ᾱ̓ήρ (āḗr, “air”).

Insular Romance
  • Sardinianaera
  • Sardinianàeri
  • Sardinianàghera
  • Sardinianàiri
  • Sardinianari
  • Sardinianària
Italo-Romance
  • Italianaere
  • Italianaiere
  • Italianaire
  • Italianare
Southern Gallo-Romance
  • Catalanaire
  • Occitanaire
  • Occitanaere
Northern Gallo-Romance
  • Frenchairfrom Old French air
  • Englishairfrom Old French air
  • Franco-Provençalêr
  • Franco-Provençalâr
  • Franco-Provençalair
  • Franco-Provençalare
  • Normanairfrom Old French air
  • Scotsairfrom Old French air
  • Yolaaarefrom Old French air
Ibero-Romance
  • Portuguesearfrom Old Galician-Portuguese aire
  • Spanishairefrom Old Spanish ayre
  • Asturianaire
  • Mirandeseaire
  • Falaairifrom Old Galician-Portuguese aire
  • Galicianairefrom Old Galician-Portuguese aire
  • Galicianarfrom Old Galician-Portuguese aire
  • Ladinoayrefrom Old Spanish ayre
Balkan Romance
  • Romanianaer
  • Aromanianair
  • Aromanianairu
Padanian
  • Friulianaiar
  • Friulianajar
  • Ligurianàire
  • Ligurianære
  • Lombardàira
  • Lombardàjer
  • Piedmonteseàire
  • Romanshajer
  • Romansharia
  • Romanshleer
Elsewhere
  • Albanianajër
  • Irishaerfrom Old Irish aer
  • Irishaidhéarfrom Old Irish aer
  • Manxaerfrom Old Irish aer
  • Scottish Gaelicadharfrom Old Irish aer
  • Polishaer
  • Bretonaerfrom Proto-Brythonic *auɨr
  • Cornishayrfrom Proto-Brythonic *auɨr
  • Welshawyrfrom Proto-Brythonic *auɨr

Quick answers

What does āēr mean in Latin?
āēr, a noun, means “air; the troposphere (situated below aethēr)”.
What is the genitive of āēr?
The genitive singular is āeris. āēr is masculine, third declension.
How do you pronounce āēr?
In classical Latin, [ˈaː.eːr]; in ecclesiastical (church) Latin, [ˈaː.er].
Where does āēr come from?
Proto-Indo-European *h₂ews- → Proto-Indo-European *h₂ewsér → Proto-Hellenic *auhḗr → Latin āēr.