Chivalry refers to the medieval system of knighthood and the ideals of bravery, courtesy, honor, and gallantry towards women. The word chivalry derives from the Latin word "caballus" meaning horse, as horses were prominently featured during the Age of Chivalry. A knight's code of chivalry included defending the church, protecting the weak, and engaging in warfare against non-Christian lands in a disciplined manner according to their vows. The code of chivalry can be summarized as consisting of 10 commandments governing a knight's faith, defense of the church, treatment of weaknesses, love of country, and engagement in just wars without mercy against enemies.