subservient vs subservience

subservient is not a noun while subservience is a noun.

Word	Noun	Adjective	Verb	Adverb
subservient	No	Yes	No	No
subservience	Yes	No	No	No

subservient (noun)	subservience (noun)
	abject or cringing submissiveness
	the condition of being something that is useful in reaching an end or carrying out a plan
	in a subservient state

subservient (adjective)	subservience (adjective)
serving or acting as a means or aid
abjectly submissive; characteristic of a slave or servant
compliant and obedient to authority