What is the meaning of Couter?

A piece of armor which covers the elbow.

A sovereign (the coin).

cǒutẹ̄r, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.

Jonathon Green, Cassell's Dictionary of Slang (2005), "couter n. (also couta, cooter) [mid-late 19C]"

post-1990 spelling of coûter

Source: wiktionary.org