Zi Collection, Middle Volume
Radical: Person (rén)
Number of Kangxi strokes: 8
Page 102, Entry 14
Pronounced chi.
Pronounced xu.
The same as the character pronounced shi.
As stated in the Explanation of Simple and Compound Characters (Shuowen Jiezi), it means to be apprehensive.
In the Discourses of the States (Guoyu), it is written: Within his heart, there is apprehension.