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cosh1

[kosh] /kɒʃ/
noun
1.
a blackjack; bludgeon.
verb (used with object)
2.
to hit on the head with a cosh.
Origin
1865-1870
1865-70; perhaps < Romany kosh, koshter stick
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for co-shed

cosh1

/kɒʃ/
noun
1.
a blunt weapon, often made of hard rubber; bludgeon
2.
an attack with such a weapon
verb (transitive)
3.
to hit with such a weapon, esp on the head
Word Origin
C19: from Romany kosh, from koshter skewer, stick

cosh2

/kɒʃ; ˈkɒsˈeɪtʃ/
noun
1.
hyperbolic cosine; a hyperbolic function, cosh z = 1/2(ez + e–z), related to cosine by the expression cosh iz = cos z, where i = √–1
Word Origin
C19: from cos(ine) + h(yperbolic)
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
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Word Origin and History for co-shed

cosh

n.

"stout stick," 1869, of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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co-shed in Science
cosh  
Abbreviation of hyperbolic cosine
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang definitions & phrases for co-shed

cosh

noun
  1. A bludgeon; blackjack
  2. : as these samurai cosh, ignite, bludgeon and blow away a host of contemptible nincompoops (1860s+ British)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Related Abbreviations for co-shed

cosh

hyperbolic cosine
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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