trank

noun

ˈtraŋk 

: tranquilizer

Doc kept the pharmacy tied to his belt in an outsized poke. Heavy downers for bedtime; tranks for travel …

—Stephen King

Rage made his head spin, and he had to ask his desk for a quick buzz of tranks.

—Robert Silverberg

Word History

Etymology

by shortening and respelling

First Known Use

1967, in the meaning defined above