abeyance vs moratorium

abeyance and moratorium both are nouns.

Word	Noun	Adjective	Verb	Adverb
abeyance	Yes	No	No	No
moratorium	Yes	No	No	No

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

Other hyponyms of abeyance include cold storage, deferral, recess, stand-down, standdown.

abeyance (noun)	moratorium (noun)
temporary cessation or suspension	suspension of an ongoing activity
	a legally authorized postponement before some obligation must be discharged