What is the meaning of Cosh?

hyperbolic cosine, a hyperbolic function.

A weapon made of leather-covered metal similar to a blackjack.

A blunt instrument such as a bludgeon or truncheon.

The cane.

To strike with a weapon of this kind.

cozy; snug

hyperbolic cosine

dative singular of cass

possessed form of osh: your father

Alternative form of coshes (conscience)

Source: wiktionary.org