The word 栩栩 is formed by duplicating the character 栩, which is a pictophonetic character composed of the semantic component 木 (meaning wood, hinting at its origin as a type of tree) and the phonetic component 羽 (which suggests its pronunciation). This repetition creates a disyllabic word that functions as an adverb or adjective, conveying the meaning of vividness or lifelikeness.