What does Jiayu mean? It is used to name children, boys.

The meaning is good, the meaning of the word:

Jia: The word Jia has many meanings, mainly kindness, beauty, praise, praise, auspiciousness, happiness, joy, etc. Since Jia has a very good meaning, it is often used in people's names.

Feather: the long hair on a bird's wings; a code name for birds; one of the five tones (Gong Shang Jiao Zheng Yu).

The name can be interpreted as: "Jiazhen? Feather Fan". The idiom "good words and actions" and "shaking the feather fan" expands the artistic conception of the name.