ㄎㄡˋkòuㄊㄡˊtóu

  1. 伏身跪拜古代最敬禮史記·一二·滑稽·淳于髡》:主使不通叩頭受罪大王。」三國演義·》:貂蟬出婦貂蟬叩頭便。」叩首」、扣頭」。叩首

to kowtow (traditional greeting, esp. to a superior, involving kneeling and pressing one's forehead to the ground)​, also written 磕頭[ke1 tou2]
kowtow
Kotau (S, Gesch)​