The Chinese word 哈迪斯 is formed through phonetic transliteration, where each character is chosen solely for its sound to approximate the pronunciation of the foreign name "Hades": 哈 (hā) corresponds to "Ha", 迪 (dí) to "des", and 斯 (sī) to the final "s", collectively creating a sound-based representation without inherent meaning related to the original term.