The Xianyun (simplified Chinese: 猃狁; traditional Chinese: 獫狁, 玁狁; pinyin: Xiǎnyǔn; Wade–Giles: Hsien-yün; Old Chinese: (ZS) *g.ramʔ-lunʔ; (Schuessler) *hɨamᴮ-juinᴮ < *hŋamʔ-junʔ) was an ancient nomadic tribe that invaded the Zhou dynasty. This Chinese exonym is written with xian 獫 or 玁 "long-snouted dog", and this "dog" radical 犭 is commonly used in graphic pejorative characters. "Xianyun" was the preferred designation for northern tribes during the Zhou dynasty, earlier designations being the Xunyu, Guifang (Xia and Shang dynasties), and later ones being the Xiongnu, during the Han dynasty.