Guangyun (Guangyun) provides the pronunciation as lu (third tone) guo (fourth tone) cut, sounding like "lei". Shuowen Jiezi (Shuowen Jiezi) explains it as uneven. Guangyun (Guangyun) further explains it as not meticulous. Jiyun (Jiyun) writes it as "䌱". Zihui Bu (Zihui Bu) mistakenly writes it as "䌱", which is incorrect.