chivalry
noun [ U ] uk/ˈʃɪv.əl.ri/ us/ˈʃɪv.əl.ri/
骑士风度;（尤指男人对女人的）殷勤，彬彬有礼
very polite, honest, and kind behaviour, especially by men towards women
骑士精神;骑士制度
the system of behaviour followed by knights in the medieval period of history, that put a high value on honour, kindness, and courage
the age of chivalry 骑士时代