quintessence, aether (fifth alchemical element, or essence, after earth, air, fire, and water, that fills the universe beyond the terrestrial sphere) · ether (any of a class of organic compounds containing an oxygen atom bonded to two hydrocarbon groups) · air (substance constituting Earth's atmosphere, a gaseous mixture of nitrogen, oxygen, and various trace gases)
çekim: tamlayan eteru
köken: Internationalism; compare English ether, French éther, German Äther, ultimately from Latin aethēr, from Ancient Greek αἰθήρ (aithḗr).