Shu: water name, Shu water.
Shuo Wen Jie Zi explains the cloud: water. Soak in Qingzhou. From the sound of water.
Hao: Hao Ben refers to long and hard hair, and later refers to outstanding people. It also refers to the generous, heroic and unconventional temperament.
Shuo Wen Jie Zi explains: Hao, like a pen container, comes from Nanjun.