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occultism (n.)[occultism 词源字典]: 1870, from occult + -ism. Related: Occultist.[occultism etymology, occultism origin, 英语词源]
sylph (n.): 1650s, "air-spirit," from Modern Latin sylphes (plural), coined 16c. by Paracelsus (1493-1541), originally referring to any race of spirits inhabiting the air, described as being mortal but lacking a soul. Paracelsus' word seems to be an arbitrary coinage, but perhaps it holds a suggestion of Latin silva and Greek nymph, or Greek silphe "a kind of beetle," but French etymologists propose a Gaulish origin. The Century Dictionary comments that, "to occultists and quacks like Paracelsus words spelled with -y- look more Greek and convincing." The meaning "graceful girl" first recorded 1838, on the notion of "slender figure and light, airy movement" [OED].