Not to mention 'chivalry', 'chivalrous', from Old French word chevalerie, "knighthood, chivalry, nobility, cavalry" (11th century), the -erie abstract of cheval

Not to mention 'chivalry', 'chivalrous', from Old French word chevalerie, "knighthood, chivalry, nobility, cavalry" (11th century), the -erie abstract of chevaler "knight, horseman", from Medieval Latin caballarius (“horseman, knight”), a derivation from caballus (“horse”).