superbia vs haughtiness

superbia and haughtiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
superbia	Yes	No	No	No
haughtiness	Yes	No	No	No

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

superbia: unreasonable and inordinate self-esteem (personified as one of the deadly sins)
haughtiness: overbearing pride evidenced by a superior manner toward inferiors

Other hyponyms of superbia include arrogance, hauteur, high-handedness, lordliness.

superbia (noun)	haughtiness (noun)
unreasonable and inordinate self-esteem (personified as one of the deadly sins)	overbearing pride evidenced by a superior manner toward inferiors