repose vs recumb

repose is a noun but recumb is not a noun.

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

As verbs, repose and recumb are synonyms defined as:

Other synonyms of repose include recline.

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

repose (verb)	recumb (verb)
put or confide something in a person or thing	lean in a comfortable resting position
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