The ideographic characters in Shuowen, the word "fly" in Xiao Zhuan, look like spreading wings below and birds' heads above. Spread your wings to fly. Regular script writing flew after the official reform. The summary of the simplified word simplifies it to "fly", leaving a wing.
The original meaning is the action of a bird flapping its wings in the air. Shuowen: "Fly, birds are flying. Duan Yucai's Note: "If you stretch your neck and spread your wings." "Shi Gao Yan Fengyan": "Flying, its feathers vary. "Then it can refer to the flight of other animals. Later, it expanded to everything floating in the sky. Ganyi: "The flying dragon is in the sky.
"Like flying snow, flying floc. It also extends from flying around to being fast and rushing. Han Liu Bang's Song of the Big Wind: "The wind rises in Yunfei. "by
Rapid extension means accident and suddenness. Hanshu: "Coma flies, the sun and the moon are thin." "Fly" means groundless and unprovoked. "The History of the Later Han Dynasty and the Biography of Zhou Rong": "If a pawn encounters a flying disaster, there is no mourning.
"When the bird flies upwards, the human voice rises." Liu Xie and Liang in the Southern Dynasties, Wen Xin Diao Long Rhythm: "Where does the sound fly ... if it flies, the sound will not come back." Fei later referred to a calligraphy term, namely "flying white".