勓 Zi Collection, Page Position: Lower Radical: Strength (lì) Kangxi stroke count: 11 Page number: 148, entry 11 According to the Collection of Rhymes (Jíyùn), the pronunciation is derived from the fanqie spelling 'kou' and 'jie', corresponding to the falling tone of 'kai'. It means to be diligent and exert effort. Another explanation is to encourage or to exert oneself.