SHa knight (=a soldier of high rank) in the Middle Ages who was very brave and loyal 〔中世纪的〕武士，骑士；帕拉丁
Examples from the Corpus
paladin• a pro-choice paladin• In short, he is all that a medieval paladin might be expected to be.• He was one of the very few left of the Bruce's close company, even if no paladin.• Most income came from the hiring out of paladins as mercenaries in territorial disputes.• As the paladin approached, however, the woman appeared undeniably solid and real.
Originpaladin
(1500-1600)FrenchItalianpaladino, from Latinpalatinus“palace official”, from palatium; → PALACE