Zi Collection, Page Position: Upper. Radical: Person (rén). Page 94, Entry 01. According to the Collected Rhymes (Jiyun), it is pronounced lu (rising tone). The Jade Chapters (Yupian) defines it as to help. Also, according to the Collected Rhymes (Jiyun), it is pronounced lu (falling tone). It was originally written in a variant form, with the same meaning.