cosh
noun
[ kɒʃ ]
• a thick, heavy stick or bar used as a weapon.
• "the defendants deny having a self-loading pistol and a telescopic cosh"
cosh
verb
• hit (someone) on the head with a cosh.
• "the other coshed him and he fell unconscious"
Origin:
mid 19th century: of unknown origin.
cosh
abbreviation
• hyperbolic cosine.
Origin:
from cos2 + -h for hyperbolic . Compare with coth.