abide vs stay

abide is not a noun while stay is a noun.

Word	Noun	Adjective	Verb	Adverb
abide	No	No	Yes	No
stay	Yes	No	Yes	No

As verbs, abide and stay are synonyms defined as:

Other synonyms of abide include bide.

As verbs, stay is a hypernym of abide; that is, stay is a word with a broader meaning than abide:

Other hypernyms of abide include continue, remain, stay on.

abide (noun)	stay (noun)
	continuing or remaining in a place or state
	(nautical) brace consisting of a heavy rope or wire cable used as a support for a mast or spar
	a thin strip of metal or bone that is used to stiffen a garment (e.g. a corset)
	a judicial order forbidding some action until an event occurs or the order is lifted
	the state of inactivity following an interruption

abide (verb)	stay (verb)
put up with something or somebody unpleasant	stay the same; remain in a certain state
dwell	stop or halt
	overcome or allay
	fasten with stays
	be in a certain place and not leave
	stop a judicial process
	dwell
	continue in a place, position, or situation
	hang on during a trial of endurance