English word confidentiality comes from English -ity, English confidential

Detailed word origin of confidentiality

Dictionary entry	Language	Definition
-ity	English (eng)	Used to form a noun from an adjective; especially, to form the noun referring to the state, property, or quality of conforming to the adjective's description.. Used to form other nouns, especially abstract nouns.
confidential	English (eng)	(dated) Inclined to share confidences.. Kept, or meant to be kept, secret within a certain circle of persons; not intended to be known publicly.
confidentiality	English (eng)	(countable) Something told in confidence; a secret.. (uncountable) The property of being confidential.

Words with the same origin as confidentiality