The word "啼哭" is formed by combining two characters: "啼" is a phono-semantic character composed of the semantic radical "口" (mouth), indicating sound production, and the phonetic component "帝" for pronunciation; "哭" incorporates two "口" radicals for emphasized vocalization and the component "犬", which historically may have phonetic or semantic functions. Together, these characters create a compound word where each contributes similar meanings related to crying, resulting in a bimorphemic term that denotes the act of crying.