obedient Look up obedient at Dictionary.com
c.1225, from O.Fr. obedient (11c.), from L. obedientem (nom. obediens), prp. of oboedire "to obey" (see obey). Obedience in ref. to dog training is attested from 1930.
obeisance Look up obeisance at Dictionary.com
c.1374, "act or fact of obeying," from O.Fr. obeissance "obedience," from obeissant, prp. of obeir "obey," from L. oboedire (see obey). Sense in Eng. alt. late 14c. to "bending or prostration of the body as a gesture of submission or respect" by confusion with abaisance.
Not much difference is there.........Golden Calf alert!
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Borgia