cocainist

cocaine +‎ -ist

cocainist (plural cocainists)

1. A cocaine addict.
   • 1921, Frederick Tice, Practice of Medicine, volume 8, page 26:

     Heroinists and cocainists are ever so much more likely to become so, a condition which is perhaps due to the fact that the addicts of heroin and cocain are, as a rule, of a lower class. The author, in his experience, has found this to be the case.

• siccation