The word 损害 is formed by combining two characters, each contributing a related meaning to create a single, more specific concept. The first character, 损 (sǔn), carries the core idea of "to diminish", "to lose", or "to impair". The second character, 害 (hài), means "harm", "damage", or "injury". They are joined not by grammar, but by semantic reinforcement; the concept of "diminishing or impairing" is logically and naturally paired with the concept of "causing harm or damage", resulting in the compounded meaning of "to cause harm or damage to", effectively visualizing a process where something is reduced or broken down, leading to injury or loss.