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The character 否 is a phono-semantic compound, formed by combining the semantic component 口 (mouth, to speak) with the phonetic component 不, which also means "not" or "negative." The original meaning of 不 is debated, with theories suggesting it was a pictograph of a calyx (the base of a flower) or, more relevantly, an ideograph representing the fundamental concept of negation or rejection. By adding 口, the character 否 was created to specify a verbal or expressed denial, meaning "to say no" or "to negate." Etymologically, 否 first appeared in ancient Chinese oracle bone and bronze scripts. It is classified under the *Shuowen Jiezi* (c. 100 CE) as representing "disapproval" or "disagreement." The character's evolution shows a stabilization of its form from the seal script to the modern clerical and standard script. It functions as an adverb meaning "not so" or "no," and as a verb meaning "to deny" or "to refuse." The kanji arrived in Japan in waves, primarily between the 5th and 8th centuries, through the importation of Chinese texts like the *Analects of Confucius*, where it is used in classical contexts. A key linguistic note is its dual Japanese readings: the on'yomi (音読み) reading "HI" (as in 否定 *hitei*, "denial") comes from Chinese, while the kun'yomi (訓読み) "ina" or "iwa" (as in 否む *inamu*, "to refuse") is the native Japanese reading assigned to the character's meaning. This character is fundamental in forming words expressing negation, opposition, or rejection in both languages.