Yāo gū (-)
original: 腰箍
Literal translation: 腰:"waist", "middle"; 箍: "hoop / band".
汉英词典 (Hàn Yīng cídiǎn) / A Chinese-English dictionary. 北京 [Běijīng], 1985, p.802 (腰 ➀, ➃) & 242.