Etymology
Advertisement
No results were found for tranquillise. Showing results for tranquilize.
tranquilize (v.)

1620s, from tranquil + -ize. Related: Tranquilized; tranquilizing; tranquilization.

Related entries & more 
Advertisement
tranquilizer (n.)

1800, "that which tranquilizes;" from 1824 as "a sedative" (first reference is to ground ivy), agent noun from tranquilize; in reference to one of a large group of anti-anxiety drugs, it is recorded by 1956.

Related entries & more