Meaning

noun a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of

noun the region above the ground

noun a distinctive but intangible quality surrounding a person or thing

originEtymology tree Proto-Indo-European *h₂ews- Proto-Indo-European *h₂ewsér Proto-Hellenic *auhḗr Ancient Greek ᾱ̓ήρ (āḗr)bor. Latin āēr Old French airbor. Middle English aire English air From Middle English aire, from Old French air, from Latin āēr, from Ancient Greek ἀήρ (aḗr). Displaced native Old English lyft. More at lift, loft.

Etymology from Wiktionary, CC BY-SA 3.0