Pax is a status effect in Final Fantasy XI. It temporarily reduces the player's enmity generation and also prevents the use of the Scholar Stratagems Equanimity and Tranquility. It is granted by the Gnostic's Drink item and the Scholar ability, Animus Minuo.
It can be removed manually or when changing areas. It can be overwritten by Enmity Boost.
"Pax" is the Latin word for "peace".