The Chinese word "悲哀" is formed by combining two characters, "悲" and "哀", each of which independently conveys a sense of sadness, grief, or sorrow. When merged, they create a compound word that deepens and enriches the meaning, evoking a profound emotional state of misery or distress. This formation follows a common pattern in Chinese where characters with similar meanings are paired to emphasize and amplify the intended concept, resulting in a more vivid and cohesive expression.