The word "妖孽" is formed by combining two characters: "妖", composed of the radical "女" (woman) suggesting unnatural or deceptive qualities and the phonetic component "夭" (yāo) indicating pronunciation, and "孽", composed of the radical "子" (child) implying offspring or origin and the phonetic element derived from "薛" (xuē) for sound. Together, "妖" contributes the meaning of a demonic or monstrous being, while "孽" adds the sense of evil or calamity, resulting in a compound term that refers to a malevolent force or creature.