Chen Collection, Middle Volume
Radical: Wood (mù)
Entry: Ren
Kangxi stroke count: 7
Page 511, Entry 18
According to the Tang Rhymes (Tangyun), the pronunciation is ren (falling tone). According to the Collected Rhymes (Jiyun) and the Rhyme Compilation (Yunhui), the pronunciation is ren (falling tone).
In the Explanation of Script and Elucidation of Characters (Shuowen), it is defined as a wooden device for locking or stopping.
In the Jade Chapter (Yupian), it is defined as the name of a tree. Sometimes written in a variant form (ren).
Also, according to the Collected Rhymes (Jiyun) and the Categorized Compilation (Leipian), it is pronounced er (rising tone). It refers to the decorative trimmings on a small carriage.