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Air

/ɛər/noun

The invisible mixture of gases surrounding the earth, which we breathe.

The Greek roots

ἀήρ
aḗr
mist, lower air

Literally: the hazy lower air

Follow a root:ἀήρ15 words

The story of the word

For Homer ἀήρ is the thick haze down near the ground; the bright upper air is αἰθήρ, a different substance altogether. Anaximenes then made ἀήρ the origin of every other thing, which is how a weather word ended up in philosophy. Latin aer carried it through Old French into English around 1300. The same word arrived once more from Italian as aria, which is why a tune can be an air.

How it travelled
Ancient Greek → Latin → Old French → English
First recorded
circa 1300

The same roots elsewhere

Other languages reached for exactly the same Greek pieces.

Same family

aerialaerobicaerosolanaerobic

In a sentence

The air on the ridge was thin enough to slow them down.

Let some air into that room before you sit down to work.

Built on the same root

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