Yu: The original meaning of the word Yu refers to the eaves of houses, and later refers to the boundaries and spaces or boundaries of houses, describing people's manners.
"Shuo Wen Jie Zi" explains the cloud: Zhai Ye. From the sound. "Yi" said, "Go to the next building."
Feather: Feathers, the long feathers on the wings and tails of birds.
Explanations in Shuo Wen Jie Zi: yeyu. From the sound of feathers.
Yu represents heaven and earth, appearance and demeanor; Feather means feather, feather and Yanling, which means beauty.
The meaning of the name can be interpreted as: "demeanor? Feathers. "