According to the Collected Rhymes (Jiyun), this character is identical to the character for lush. Explaining the Writing and Analyzing Characters (Shuowen Jiezi) defines it as the appearance of grass growing luxuriantly. Another pronunciation is xia (falling tone), sounding the same as the character for linchpin. It is the name of a type of grass. According to the Record of Local Dialects (Yangzi Fangyan), the regions of Su, Yuan, and southern Xiang call it feng, and the character form is a simplified variant.