lawfulness vs licitness

lawfulness and licitness both are nouns.

Word	Noun	Adjective	Verb	Adverb
lawfulness	Yes	No	No	No
licitness	Yes	No	No	No

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

Other hyponyms of lawfulness include legality, legitimacy, semi-legality, semilegality.

lawfulness (noun)	licitness (noun)
the quality of conforming to law	the quality of strictly conforming to law