腳底心 [脚－－]

Jyutping goek3 dai2 sam1
Pinyin jiǎo dǐ xīn

Definitions (Wiktionary)
  1. noun, Jin, Wu
    underside of the arch of the foot
    (syn.) 腳板心, 腳心, 跤心, 脚板心, 脚心