obey vs obeisance

obey is not a noun while obeisance is a noun.

Word	Noun	Adjective	Verb	Adverb
obey	No	No	Yes	No
obeisance	Yes	No	No	No

obey (noun)	obeisance (noun)
	the act of obeying; dutiful or submissive behavior with respect to another person
	bending the head or body or knee as a sign of reverence or submission or shame or greeting

obey (verb)	obeisance (verb)
be obedient to