Noah Webster
Immunity
IMMU'NITY, noun [Latin immuinitas, from immunis, free, exempt; in and munus, charge, office, duty.]
1. Freedom or exemption from obligation. To be exempted from observing the rites or duties of the church, is an immunity
2. Exemption from any charge, duty, office, tax or imposition; a particular privilege; as the immunities of the free cities of Germany; the immunities of the clergy.
3. Freedom; as an immunity from error.