alkaloid obtained from the leaves of the coca plant, 1874, from Modern Latin cocaine (1856), coined by Albert Niemann of Gottingen University from coca (from Quechua cuca) + chemical suffix -ine (2). A medical coinage, the drug was used 1870s as a local anaesthetic for eye surgery, etc. "It is interesting to note that although cocaine is pronounced as a disyllabic word it is trisyllabic in its formation" [Flood]. Cocainism "addiction to cocaine" is recorded by 1885.
soft drink, 1909, a popular shortening of the brand name Coca-Cola, perhaps influenced by the earlier slang use of coke for cocaine (another popular early name for the soft drink was dope).