cosh1
[kosh]Chiefly British Slang.
- a blackjack; bludgeon.
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- to hit on the head with a cosh.
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Origin of cosh1
1865–70; perhaps < Romany kosh, koshter stick
cosh2
[kosh]
- hyperbolic cosine.
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Origin of cosh2
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cosh
Historical Examples
In his left pocket there was a cosh and in his right a revolver.
Tartarin de TarasconAlphonse Daudet
Copeland, Cosh, and M'Nair, along with their respective wives.
The Story of John G. PatonJames Paton
Cosh, a neddy, a life-preserver; any short, loaded bludgeon.
The Slang DictionaryJohn Camden Hotten
Coshery, kosh′ėr-i, n. the ancient right of an Irish chief to quarter himself and his retainers on his tenantry—also Cosh′ering.
The cosh was a foot length of iron rod, with a knob at one end, and a hook (or a ring) at the other.
A Child of the JagoArthur Morrison
cosh1
- a blunt weapon, often made of hard rubber; bludgeon
- an attack with such a weapon
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- to hit with such a weapon, esp on the head
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Word Origin
C19: from Romany kosh, from koshter skewer, stick
cosh2
- hyperbolic cosine; a hyperbolic function, cosh z = 1/2 (e z + e –z), related to cosine by the expression cosh i z = cos z, where i = √–1
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Word Origin
C19: from cos (ine) + h (yperbolic)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for cosh
n.
"stout stick," 1869, of unknown origin.
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Online Etymology Dictionary, © 2010 Douglas Harper
cosh
- Abbreviation of hyperbolic cosine
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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.