About
晁 (cháo) originated as a variant of 朝 (zhāo), meaning 'morning.' It is a phono-semantic compound: the sun radical 日 on top provides the semantic category of daylight, while the lower component 兆 (zhào) supplies the pronunciation. Originally created as a noun for the early part of the day, it later shifted primarily to a surname, with 朝 retaining the common meaning of 'morning.' The structure of sun above and phonetic element below clearly shows its etymological link to solar timekeeping before this semantic change.