KOWTOW
kowtow, kotow
(noun) a former Chinese custom of touching the ground with the forehead as a sign of respect or submission
fawn, toady, truckle, bootlick, kowtow, kotow, suck up
(verb) try to gain favor by cringing or flattering; “He is always kowtowing to his boss”
scrape, kowtow, genuflect
(verb) bend the knees and bow in a servile manner
Source: WordNet® 3.1
Etymology
Verb
kowtow (third-person singular simple present kowtows, present participle kowtowing, simple past and past participle kowtowed)
(intransitive, figuratively) To grovel, act in a very submissive manner.
(intransitive, historical) To kneel and bow low enough to touch one’s forehead to the ground.
(intransitive) To bow very deeply.
Noun
kowtow (plural kowtows)
The act of kowtowing.
Source: Wiktionary
Kow*tow", n. & v. i.
Definition: The same as Kotow.
I have salaamed and kowtowed to him. H. James.
Source: Webster’s Unabridged Dictionary 1913 Edition