That is not the provenance (origin) of copperhead, it is another meaning of the word though. https://www.merriam-webster.com/dictionary/copperhead https://www.

That is not the provenance (origin) of copperhead, it is another meaning of the word though. https://www.merriam-webster.com/dictionary/copperhead https://www.merriam-webster.com/dictionary/copperhead The first known use of the word "copperhead" was in 1775, well before the US civil war.