Tranquillity
From BiblePortal Wikipedia
King James Dictionary [1]
Tranquil'Lity, n. L. tranquillitas. Quietness a calm state freedom from disturbance or agitation. We speak of the tranquillity of public affairs, of the state, of the world, the tranquillity of a retired life, the tranquillity of mind proceeding from conscious rectitude.
Webster's Dictionary [2]
(n.) The quality or state of being tranquil; calmness; composure.