i Register
In some senses, privity is marked as obsolete, archaic. Watch for register when choosing this word.
noun
A divine mystery; something known only to God, or revealed only in holy scriptures.
But yet there is a place that men clepe the school of God, where he was wont to teach his disciples, and told them the privities of heaven.
Privacy, secrecy.
Him oft and oft I askt in priuitie, / Of what loines and what lignage I did spring[…].
A private matter, a secret.
The genitals.
Having ended the delights of nature, they were wont to wipe their privities [translating catze] with perfumed wooll.
A relationship between parties seen as being a result of their mutual interest or participation in a given transaction, e.g. contract, estate, etc.
There is no privity, (as the lawyers say),—that is, no mutual recognition, consent and agreement—between those who take these oaths, and any other persons.