quick one straight from latin class bc we read a passage with the word "concordia":

word of the day - concord /ˈkäNGkərd/
1. agreement or harmony between people or groups.
2. agreement of words in grammar by gender, number, and case
comes from the latin prefix con- (together) + cor, cord (heart)
so it literally means the joining of hearts! cor is also the root word in cordial - warm and friendly, literally meaning "of the heart"