Play word 禅譲 禅譲 ぜんじょう abdication (of a Chinese emperor) in favor of a virtuous successor (as opposed to an heir)
Play word 謙譲語I 謙譲語I けんじょうごいち humble language in which the listener (or a third party) is the indirect object of an action (or the recipient of an object, etc.)
Play word 謙譲語II 謙譲語II けんじょうごに humble language in which an action or object is not directed toward the listener (or a third party)