名詞 kowtow:

1. a former Chinese custom of touching the ground with the forehead as a sign of respect or submission
   同義詞：kotow

動詞 kowtow:

1. bend the knees and bow in a servile manner
   同義詞：scrape, genuflect
2. try to gain favor by cringing or flattering
   同義詞：fawn, toady, truckle, bootlick, kotow, suck up

kow.tow

v.intr.（不及物動詞）
kow.towed,kow.tow.ing,kow.tows
To kneel and touch the forehead to the ground in expression of deep respect, worship, or submission, as formerly done in China.
叩頭：跪下并使前額觸地，以表示高度尊敬、崇拜或臣服，以前曾用于中國
To show servile deference; fawn.See Synonyms at fawn
表示諂媚的敬意；討好參見 fawn
n.（名詞）
The act of kneeling and touching the forehead to the ground.
叩頭：跪下并使前額觸地的動作
An obsequious act.
奴顏卑膝的行為

來源：
From Chinese (Mandarin) kòu tóu [a kowtow]
源自 漢語（普通話） kòu tóu [叩頭]
kòu [to knock]
kòu [使碰撞]
tóu [head]
tóu [頭]