Privity Priv"i*ty, n.; pl. Privities (-t[i^]z). [From Privy, a.: cf. F. privaut['e] extreme familiarity.] 1. Privacy; secrecy; confidence. --Chaucer. I will unto you, in privity, discover . . . my purpose. --Spenser. 2. Private knowledge; joint knowledge with another of a private concern; cognizance implying consent or concurrence. All the doors were laid open for his departure, not without the privity of the Prince of Orange. --Swift. 3. A private matter or business; a secret. --Chaucer. 4. pl. The genitals; the privates. 5. (Law) A connection, or bond of union, between parties, as to some particular transaction; mutual or successive relationship to the same rights of property.