- asbestos
- asbestos (n.) 1650s, earlier albeston, abestus (c.1100), name of a fabulous stone, which, set afire, could not be extinguished; from O.Fr. abeste, abestos, from L. asbestos "quicklime" (which "burns" when cold water is poured on it), from Gk. asbestos, lit. "inextinguishable," from a- "not" + sbestos, verbal adjective from sbennynai "to quench," from PIE root * (s)gwes- "to quench, extinguish" (Cf. Lith. gestu "to go out," O.C.S. gaso, Hittite kishtari "is being put out").The Greek word was used by Dioscorides as a noun meaning "quicklime." "Erroneously applied by Pliny to an incombustible fibre, which he believed to be vegetable, but which was really the amiantos of the Greeks" [OED]. Meaning "mineral capable of being woven into incombustible fabric" is from c.1600 in English; earlier this was called amiant (early 15c.), from L. amiantus, from Gk. amiantos, lit. "undefiled" (so called because it showed no mark or stain when thrown into fire). Supposed in the Middle Ages to be salamanders' wool. Prester John, the Emperor of India, and Pope Alexander III were said to have had robes or tunics made of it.
Etymology dictionary. 2014.