U+66F6 "曶" CJK Unified Ideograph-# Unicode Character

U+66F6 "曶" CJK Unified Ideograph-# is a rarely used Chinese character that historically denotes a concept of haste or suddenness, often appearing in classical texts to convey swift action or a fleeting moment. It is composed of the radical "日" (sun or day) on the left and "勿" (do not) on the right, a combination that suggests a sun obscured or driven away, reinforcing its meaning of abruptness. In ancient writings, such as the Han dynasty dictionary "Shuowen Jiezi," it is defined as "to fly swiftly," associating it with rapid movement or concealment. While not commonly encountered in modern Chinese, it sometimes surfaces in calligraphy or literary references, preserving its classical nuance of urgency and transience.