Pronounced nu le (falling tone) in Guangyun (Guangyun) and ni de (falling tone) in Jiyun (Jiyun), with a falling tone identical to that of "neng". Defined in Zihui (Zihui) as "a tool for threshing grain", appearing in Essential Techniques for the Common People (Qimin Yaoshu). Zhengzitong (Zhengzitong) states that the term "cui" in the Fangyan (Fangyan) and "tui" in Yupian (Yupian) are both explained as mallets. "Cui" should refer to a tool for threshing grain. Additionally, Jiyun (Jiyun) records: "Cui", describing the appearance of grass growing.