from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The state of being a copperhead; sympathy in the North for Southern secessionists during the American Civil War.
from The Century Dictionary and Cyclopedia
- n. In the period of the civil war in the United States, northern sympathy with the rebellion.
Even the scandals of the Republican administration could not avail the Democrats unless a leader could be found free from the taint of treason and copperheadism and strong enough to hold the party North and South.
With older brothers in the army he had supported his mother during the war, and had kept clear of copperheadism.