Explore each form from the oldest known stage to today.
The kanji 催 is a phono-semantic compound, formed during the Shuowen Jiezi era (c. 100 AD). Its semantic component is the radical 人 (亻, human/person) on the left, indicating an action performed by people. The phonetic component is 崔 (cuī) on the right, which also contributes to its meaning. 崔 itself depicts a towering, rugged mountain (山) over a mourning figure (隹, short-tailed bird, here a miscopy of 隹 from 奞, depicting a person with widespread arms). The core semantic idea derived from 崔 is "to press upon" or "to gather with force," which, when combined with the human element (亻), creates the sense of "to press people to gather" or "to urge people to action." Historically, the character's meaning evolved from this foundational idea of "urging" or "pressuring." In classical Chinese, it was used in contexts like 催促 (to urge/hasten) and 催征 (to press for taxes). This broad meaning of instigating or causing something to happen naturally extended to the more specific and modern sense of "sponsoring" or "hosting" an event, as this involves urging and gathering people for a specific occasion, such as a 催事 (event) or 主催 (sponsorship). The character arrived in Japan in waves, primarily from the 5th to the 8th centuries, as part of the broader importation of the Chinese writing system and classical texts like the *Manyoshu*. It was adopted into the Japanese language, retaining its core meanings. A key linguistic note is that while "sponsor" is a primary meaning in Japanese today, the kanji's fundamental concept of "causing to happen" is still evident in other compounds. For instance, 催眠 (saimin) means "hypnosis" (literally, urging sleep), 催化 (saika) means "catalysis" in scientific contexts (urging a chemical change), and 催涙 (sairui) means "tear-gas" (urging tears). This demonstrates how the character's etymology consistently underlies its diverse applications.