haughtiness vs superbia

haughtiness and superbia both are nouns.

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

As nouns, superbia is a hypernym of haughtiness; that is, superbia is a word with a broader meaning than haughtiness:

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

Other hypernyms of haughtiness include pride.

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