"that which intoxicates," 1798; see intoxicate. Perhaps from Medieval Latin intoxicantem (nominative intoxicans), present participle of intoxicare. As an adjective from 1882.
a preparation of Cannabis sativa for use as an intoxicant, generally by smoking, 1918, altered by influence of Spanish proper name Maria Juana "Mary Jane" from mariguan (1894), from Mexican Spanish marihuana, which is of uncertain origin. As the plant was not native to Mexico, a native source for the word seems unlikely.
name of an intoxicant used in ancient Vedic ritual, prepared from the juice of some East Indian plant, 1785, from Sanskrit soma, from PIE *seu- "juice," from root *seue- (2) "to take liquid" (see sup (v.2)). In "Brave New World" (1932), the name of a state-dispensed narcotic producing euphoria and hallucination.
1798, "common hemp," from Cannabis, Modern Latin plant genus named (1728), from Greek kannabis "hemp," a Scythian or Thracian word. That word is also source of Armenian kanap', Albanian kanep, Russian konoplja, Persian kanab, Lithuanian kanapės "hemp," and English canvas and possibly hemp. In reference to use of the plant parts as an intoxicant, from 1848. Related: Cannabic.