cosh
1[ kosh ]
/ kɒʃ /
noun
verb (used with object)
to hit on the head with a cosh.
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Origin of cosh
1First recorded in 1865–70; of uncertain origin; perhaps from Romani kosh, koshter “piece of wood,stick,” akin to Sanskrit kāṣṭham
Words nearby cosh
coseismal, Cosell, Cosenza, coset, Cosgrave, cosh, cosher, Coshocton, Così fan tutte, cosign, cosignatory
Definition for cosh (2 of 2)
cosh2
[ kosh ]
/ kɒʃ /
noun Mathematics.
hyperbolic cosine.
Origin of cosh
2First recorded in 1870–75; cos(ine) + h(yperbolic)
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for cosh
British Dictionary definitions for cosh (1 of 2)
cosh1
/ (kɒʃ) British /
noun
a blunt weapon, often made of hard rubber; bludgeon
an attack with such a weapon
verb (tr)
to hit with such a weapon, esp on the head
Word Origin for cosh
C19: from Romany kosh, from koshter skewer, stick
British Dictionary definitions for cosh (2 of 2)
cosh2
/ (kɒʃ, ˈkɒsˈeɪtʃ) /
noun
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
Word Origin for cosh
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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Scientific definitions for cosh
cosh
Abbreviation of hyperbolic cosine
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.