refulgence vs radiancy

refulgence and radiancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
refulgence	Yes	No	No	No
radiancy	Yes	No	No	No

As nouns, refulgence and radiancy are synonyms defined as:

refulgence and radiancy: the quality of being bright and sending out rays of light

Other synonyms of refulgence include effulgence, radiance, refulgency, shine.

refulgence (noun)	radiancy (noun)
the quality of being bright and sending out rays of light	the quality of being bright and sending out rays of light