kotow
  叩頭[頭著地的大禮]
  Ko·tow n.  Same as kowtow, the more common spellings. [China] [Also spelled kowtow.]
  Ko·tow, v. i. [imp. & p. p. Kotowed p. pr. & vb. n. Kotowing.]
  1. To perform the kotow.  Now usually spelled kowtow. [Also spelled kowtow.]
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  Kow·tow n.  The prostration made by mandarins and others to their superiors, either as homage or worship, by knocking the forehead on the ground; same as Kotow.  There are degrees in the rite, the highest being expressed by three knockings. [China] [Also spelled kotow.]
  kotow
       n : a former Chinese custom of touching the ground with the
           forehead as a sign of respect or submission [syn: kowtow]
       v : try to gain favor by cringing or flattering; "He is always
           kowtowing to his boss" [syn: fawn, toady, truckle,
           bootlick, kowtow, suck up]