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The character 刻 (kè) evolved from ancient pictographs showing a knife cutting into an object. It combines the radical 刂 (knife) with 亥 (a phonetic component). Originally depicting the act of carving or engraving with a blade, its meaning expanded to include concepts of time (moments carved from eternity), severity, and precision. In Liushutong, L27909 shows an early form where the knife radical is clearly visible cutting into another element, representing the fundamental action of incision that defines this character's core meaning. Arrived in Japan: The character 刻 arrived in Japan during the 5th-6th centuries CE along with the broader introduction of Chinese writing systems, likely through Buddhist texts and cultural exchange. It was formally adopted into the Japanese writing system during the Asuka and Nara periods (6th-8th centuries) as part of the comprehensive importation of Chinese characters (kanji) for writing classical Chinese and later adapted for writing Japanese.