paragon of knighthood; model samurai
Idiomatic phrase used to praise someone as an exemplary warrior or samurai, embodying the ideal of bushido.
He is truly a paragon of knighthood.
That conduct can be called the model of a samurai.
Compound of 武士 (bushi, 'samurai') + の (possessive particle) + 鑑 (kagami, 'model' or 'mirror'), literally 'mirror of the samurai', meaning an exemplary warrior.