verb (used with or without object), tran·quil·ized, tran·quil·iz·ing.
Also especially British, tran·quil·lise.
Origin of tranquilize
Related formstran·quil·i·za·tion, nounun·tran·quil·ize, verb (used with object), un·tran·quil·ized, un·tran·quil·iz·ing.
First recorded in 1615–25; tranquil
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for tranquillize
Historical Examples of tranquillize
"Be calm, tranquillize yourself—it will all be well," said the latter, with a smile.
Every effort should be made to tranquillize and reassure the patient.
He promised to do what he could, and tried to tranquillize me.
But this letter did not tranquillize Dorcas, to whom it was written.
In the case of Jolin, how speedily did it tranquillize and cheer his mind.
British Dictionary definitions for tranquillize
tranquillise or US tranquilize
Derived Formstranquillization, tranquillisation or US tranquilization, noun
to make or become calm or calmer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for tranquillize
1620s, from tranquil + -ize. Related: Tranquilized; tranquilizing.
Online Etymology Dictionary, © 2010 Douglas Harper
Related formstran′quil•i•za′tion (-kwə-lĭ-zā′shən) n.
To make tranquil; pacify.
To sedate or relieve of anxiety or tension by the administration of a drug.
To become tranquil; relax.
To have a calming or soothing effect.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.