The word "肝火" is formed by combining the character "肝" (gān), meaning "liver", with "火" (huǒ), meaning "fire". In traditional Chinese medicine, this term denotes a condition where the liver is thought to generate excessive internal heat, leading to symptoms such as irritability or inflammation. The formation is direct: "肝" identifies the organ, and "火" describes the pathological state, resulting in a compound that literally means "liver fire" to represent this specific concept.