Englishkowtow
verb
1 they kowtow to her in awe and reverence:
prostrate oneself, bow, bow down before, genuflect, do/make obeisance, fall on one's knees before, get down on one's knees before, kneel before;
salaam, throw oneself at someone's feet, fall down before someone, curtsy, bow and scrape;
pay homage, show reverence, show deference, humble oneself before someone, worship.
2 she didn't have to kowtow to a boss:
grovel, behave obsequiously, be obsequious, be servile, be sycophantic, fawn on, bow and scrape, toady, truckle, abase oneself, humble oneself, prostrate oneself;
curry favour with, flatter, court, woo, dance attendance on, make up to, play up to, ingratiate oneself with;
informal crawl, creep, suck up to, brown-nose, butter up, be all over, fall all over, lick someone's boots;
Australian, New Zealand, informal smoodge to;
archaic blandish.
kowtow Oxford Dictionary of English