See obeisance in Webster's New World Roget's A-Z Thesaurus II
noun
An inclination of the head or body, as in greeting, consent, courtesy, submission, or worship:
bow1, curtsy, genuflection, kowtow, nod. See courtesyGreat respect or high public esteem accorded as a right or as due:
deference, homage, honor. See respect
Learn more about obeisance