[ 'ʃɪv(ə)lri ]
■ noun
1》 the medieval knightly system with its religious, moral, and social code.
↘the combination of qualities expected of an ideal knight, especially courage, honour, courtesy, justice, and a readiness to help the weak.
↘courteous behaviour, especially that of a man towards women.
2》 archaic knights, noblemen, and horsemen collectively.
Derivatives
chivalric adjective
Origin
ME: from OFr. chevalerie , from med. L. caballerius , for late L. caballarius (see chevalier ).