When two people know the family secret, this is an example of a shared privity.
When two people enter into a contract together, this is an example of when they have privity of contract.
Origin of privity
- Middle English privete secrecy, privacy from Old French from Medieval Latin prīvitās from Latin prīvus single, alone per1 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- From Anglo-Norman privetÃ©, privitee et al., Old French privetÃ©, from privÃ© + -tÃ©.