The word "缥渺" is formed by combining two phonosemantic characters: "缥" integrates the silk radical (纟) to imply lightness or faintness, with "票" providing phonetic clues, while "渺" uses the water radical (氵) to suggest vastness or distance, with "眇" contributing sound; together they form a disyllabic compound denoting something vague, misty, or illusory.