repose vs quiescency

repose and quiescency both are nouns.

Word	Noun	Adjective	Verb	Adverb
repose	Yes	No	Yes	No
quiescency	Yes	No	No	No

As nouns, quiescency is a hyponym of repose; that is, quiescency is a word with a more specific, narrower meaning than repose:

Other hyponyms of repose include bed rest, bedrest, laziness, lie-in, dormancy, quiescence, sleeping, leisure.

repose (noun)	quiescency (noun)
freedom from activity (work or strain or responsibility)	quiet and inactive restfulness
a disposition free from stress or emotion	a state of quiet (but possibly temporary) inaction
the absence of mental stress or anxiety

repose (verb)	quiescency (verb)
put or confide something in a person or thing
lie when dead
put in a horizontal position
lean in a comfortable resting position
to put something (eg trust) in something
be inherent or innate in