1966, from keto- (before vowels ket-), combining form of ketone, + amine.
Entries linking to ketamine
ketone n.
chemical group, 1851, from German keton (1848), coined by German chemist Leopold Gmelin (1788-1853) from German Aketon, from French acétone (see acetone). "Appar. an arbitrary variation of acetone, to make a distinction" [Century Dictionary]. Its combining form is keto-. Related: Ketonic.
amine n.
"compound in which one of the hydrogen atoms of ammonia is replaced by a hydrocarbon radical," 1863, from ammonia + chemical suffix -ine (2).