The word 'equanimity' has two root roods, which are 'aequus' and 'animus'. These root words are from Latin, and they mean 'equal' and 'mind'. The meaning of equanimity is having a balanced mind.
Equanimity is the quality of being composed and steady, especially under stress or pressure.
there are not many words that start with E that mean peace but i found equanimity on synonym.com
Equanimity - 2010 was released on: USA: 13 April 2010
Synonym: composure, calmness Antonym: agitation, distress
Her equanimity during the ominous trial was astonishing to her husband and family.
equanimous.
composure
The cast of Equanimity - 2010 includes: Erika Ehrenford as Spirit of Venezuela Tal Moss as Rebel Andy Sleet as Soldier
equi- (e.g. equivalent) means equal or equally and its variation includes equ- (e.g. equate) and equa- (e.g. equanimity).
Composure, calmness, poise.
The tranquil setting lulled me to sleep.The beach made a tranquil backdrop for our wedding photos. With her last child going off to college, she relished the tranquil quiet of her house.