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The character 諭 (yù) evolved from ancient Chinese pictographs and ideographs. Its modern form combines 言 (speech) with 俞 (which originally depicted using a tool to hollow out wood, later acquiring meanings of 'consent' or 'permission'). Together, they create the meaning 'to instruct,' 'to make understand,' or 'to admonish.' The character represents the concept of using words to penetrate someone's understanding, much like a tool shapes wood. Over centuries, it maintained this core meaning of verbal instruction and enlightenment. Arrived in Japan: The character 諭 likely arrived in Japan during the 5th-6th centuries CE as part of the broader introduction of Chinese writing systems to Japan, primarily through Buddhist texts and diplomatic exchanges. It became established in the Japanese writing system during the Asuka and Nara periods (6th-8th centuries) when Japan systematically adopted Chinese characters (kanji) for writing the Japanese language.