The Chinese word 尼加拉瓜 is formed solely through phonetic transliteration of the English name "Nicaragua", with each character representing a syllable: 尼 (ní) for "Ni", 加 (jiā) for "ca", 拉 (lā) for "la", and 瓜 (guā) for "gua", resulting in a sound-based approximation without semantic meaning.