refulgence vs refulgency

refulgence and refulgency both are nouns.

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

As nouns, refulgence and refulgency are synonyms defined as:

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

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

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