Word
ether
US/ˈiθɝ/
UK/ˈiːθɐ/
Uncountable noun
Definition
n. a clear liquid that was used in the past to make people sleep before surgery. It can also refer to the air or the sky in a poetic way.
n. an organic compound formerly used as a general anaesthetic; also refers to the upper regions of space or the clear sky in literary contexts.
Examples
“The doctor used ether to put the patient to sleep.”
“Before modern medicine, surgeons relied on ether to ensure patients remained unconscious during painful procedures.”
“The poet described the stars as distant diamonds suspended in the cold, silent ether of the midnight sky.”
Examples
simple
“The doctor used ether to put the patient to sleep.”
contextual
“Before modern medicine, surgeons relied on ether to ensure patients remained unconscious during painful procedures.”
complex
“The poet described the stars as distant diamonds suspended in the cold, silent ether of the midnight sky.”
Usage
Uncountable when referring to the chemical substance or the literary sky; countable when referring to specific chemical derivatives in chemistry.
Real-World Examples
“First, the superlunary—the realm of the planets and fixed stars, composed of the now-debunked element ether.” “He built a model of the universe divided up into concentric spheres, with terrestrial layers made up of the four elements and celestial layers made from a fifth element known as the aether.” “The way he had made an excuse to return to his car - almost certainly to collect a rope and a bottle of ether to drug her.” “In the late 19th century, all the talk was of the luminiferous ether, a medium which was thought to carry light.” Etymology
From Middle English ēther (“the caelum aetherum of ancient cosmology in which the planets orbit; a shining, fluid substance described as a form of air or fire; air”), borrowed from Anglo-Norman ether and Middle French ether, ethere, aether, from Old French aether (“highest and purest part of the atmosphere; medium supposedly filling the upper regions of space”) (modern French éther), or directly from its etymon Latin aethēr (“highest and purest part of the atmosphere; air; heavens, sky; light of day; ethereal matter surrounding a deity”) (note also New Latin aethēr (“chemical compound analogous to diethyl ether”)), from Ancient Greek αἰθήρ (aithḗr, “purer upper air of the atmosphere; heaven, sky; theoretical medium supposed to fill unoccupied space and transmit heat and light”), from αἴθω (aíthō, “to burn, ignite; to blaze, shine”), from Proto-Indo-European *h₂eydʰ- (“to burn; fire”). The English word is cognate with Italian ether, ethera (both obsolete), etere, Middle Dutch ether (modern Dutch aether (obsolete), ether), German Äther, Ether, Portuguese éter, Spanish éter.
From “Ether” (2001), a song by the American hip hop recording artist Nas (born 1973). According to Nas, the song, a diss track aimed at fellow artist Jay-Z (born 1969), was thus named because he was once told that ghosts and spirits do not like the fumes from ether (noun, sense 5), and he viewed the song as affecting Jay-Z in a similar way. The song contains the lines “I fuck with your soul like ether” and “That ether, that shit that make your soul burn slow”.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C2 ProficiencyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.8.5–9.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 6.0114–120
- Frequency
- Frequent
- Level
- C2 · Proficiency
- Updated
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