posthaste
[pohst-heyst]
adverb
with the greatest possible speed or promptness: to come to a friend's aid posthaste.
noun
Archaic. great haste.
Origin of posthaste
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for post-haste
rapid, energetic, cursory, hasty, agile, brisk, brief, immediate, instantaneous, nimble, sudden, abrupt, hurried, active, expeditious, keen, swift, hot, quick, rapidlyExamples from the Web for post-haste
Historical Examples of post-haste
As it may therefore be of importance, I dispatch it with my own, by my servant, post-haste.
Clarissa, Volume 3 (of 9)Samuel Richardson
Of course we knew at once what it meant, and he set off post-haste.
The Works of Guy de Maupassant, Volume VIII.Guy de Maupassant
He knew that this would start us post-haste for our apartment, which it did.
The Van DwellersAlbert Bigelow Paine
One deadly sickness he had at Kenilworth, when my father was ridden for post-haste.
The Caged LionCharlotte M. Yonge
A horseman was sent forward, post-haste, to intimate to us that they were on their way.
Letters of John Calvin, Volume I (of 4)Jules Bonnet
posthaste
adverb
noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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posthaste
Online Etymology Dictionary, © 2010 Douglas Harper
posthaste
[(pohst-hayst)]
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.