minority tribe
傜 refers to a minority tribe, an ethnic group distinct from the majority population. The meaning is narrow and specific to this tribal designation.
傜 combines the person radical 亻 with the phonetic component 䍃. It is used specifically for the name of a minority tribe, likely chosen for its sound value. The exact historical origin of the character is uncertain.
A person 亻 from a distant tribe, represented by the complex right side 䍃 (which looks like a container with a lid and something inside), stands apart. Think of a unique cultural group.
For ヨウ, imagine a tribal yo-yo used in a traditional ceremony: yo -> ヨウ, and the person 亻 is performing with it.