repose vs ataraxia

repose and ataraxia both are nouns.

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

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

repose (noun)	ataraxia (noun)
freedom from activity (work or strain or responsibility)	peace of mind
a disposition free from stress or emotion
the absence of mental stress or anxiety

repose (verb)	ataraxia (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