What does "peace democrat" mean?

Synonym of Copperhead (“a northerner who sympathized with the South or wanted to end hostilities during the American Civil War”).

What is a synonym for "peace democrat"?

Common synonyms include: copperhead, copperheads.

noun

noun ·Rare ·Advanced level

Noun

1
Synonym of Copperhead (“a northerner who sympathized with the South or wanted to end hostilities during the American Civil War”). US, historical