GC: n
S: PMC (last access: 2 May 2026); NCBI (last access: 2 May 2026).
N: 1. – toxic (adj): 1660s, “of or pertaining to poisons, poisonous,” from French toxique and directly from Late Latin toxicus “poisoned,” from Latin toxicum “poison,” from Greek toxikon (pharmakon) “(poison) for use on arrows,” from toxikon, neuter of toxikos “pertaining to arrows or archery,” and thus to a bow, from toxon “bow,” which has been regarded as a loan-word from Scythian.
Watkins suggests a possible source in Iranian taxša- “bow” (from PIE *tekw- “to run, flee”). Beekes, pointing to the early attestation of the Greek word, suggests a Pre-Greek origin.
As a noun from 1890. Related: Toxical. Compare intoxicate. Toxic waste is by 1888 in medicine, “toxin;” by 1955 as “chemical or radioactive waste.”
– oil (n): late 12c., “olive oil,” from Anglo-French and Old North French olie, from Old French oile, uile “oil” (12c., Modern French huile), from Latin oleum “oil, olive oil” (source of Spanish, Italian olio), from Greek elaion “olive tree,” from elaia (see olive).
Nearly all the European languages’ words for “oil” (Croatian ulje, Polish olej, Hungarian olaj, Albanian uli, Lithuanian alejus, etc.) are from the Greek word; the Germanic (except Gothic) and Celtic one coming from Greek via Latin: Old English æle, Dutch olie, German Öl, Welsh olew, Gaelic uill, etc.
In English it meant “olive oil” exclusively till c. 1300, when the word began to be extended to any fatty, greasy liquid substance (usually flammable and insoluble in water). Often especially “oil as burned in a lamp to afford light” (as in midnight oil, symbolizing late work). Use for “petroleum” is recorded from 1520s but not common until 19c.
– syndrome (n): “a number of symptoms occurring together,” 1540s, from medical Latin, from Greek syndrome “concurrence of symptoms, concourse of people,” from syndromos “place where several roads meet,” literally “a running together,” from syn- “with” + dromos “a running, course”. Psychological sense is from 1955.
- Abbreviation: TOS.
2. Toxic oil syndrome is a rare intoxication, due to consumption of a rapeseed oil denatured with aniline 2%, characterized by generalized vascular lesions affecting all organs and vessels (including veins and arteries) and presenting with severe incapacitating myalgias, marked peripheral eosinophilia and pulmonary infiltrates.
3. Toxic oil syndrome (TOS), a previously underscribed disease that occurred in Spain in epidemic form in 1981, has been associated with ingestion of a reprocessed denatured rapeseed oil illegally marketed. However, the association between the syndrome and the adulterated rapeseed oil rests exclusively on epidemiological data because of the absence of toxicologic confirmation and the inability to reproduce the disease in animals. An analysis of the epidemiological evidence available on TOS is carried out in this paper, in an attempt to elucidate the aetiological role of the purported toxic oil.
4. Cultural Interrelation: We can mention the book Toxic oil syndrome: current knowledge and future perspectives by WHO Regional Publications, European Series;42, xvii, 163 p.
S: 1. Etymonline – https://www.etymonline.com/search?q=toxic, https://www.etymonline.com/search?q=oil, https://www.etymonline.com/word/syndrome (last access: 2 May 2026); SDir (last access: 2 May 2026). 2. Orphanet (last access: 2 May 2026). 3. SDir (last access: 2 May 2026). 4. WHO (last access: 2 May 2026).
SYN:
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CR: syndrome
