According to the Collection of Jade (Yupian), this is an ancient form of the character meaning to exceed. For detailed notes, see Radical: Stride (chuò), nine strokes.
Also, according to the Expanded Dictionary of Sounds and Meanings (Guangyun), it is pronounced dou. According to the Collected Rimes (Jiyun) and the Dictionary of Rimes (Yunhui), it is also pronounced dou, with a sound identical to the word for head. The Collection of Jade (Yupian) defines it as going to a latrine. The Collected Rimes (Jiyun) states that it is interchangeable with the character meaning a wooden container for excrement (tou).
Also, the Collection of Jade (Yupian) defines it as a wooden trough.
Also, according to the Collected Rimes (Jiyun), it is pronounced yu, with a sound identical to the word for consent. The meaning is the same.
Also, it is interchangeable with the character for a granary (yu). In the Collected Rimes (Jiyun), the character for a granary is sometimes written in a variant form.
Zi Collection, Page Position: Upper
Radical: Stride (chuò)
Page 385, Entry 02