equanimity

The story

1. Latin · derived fromaequanimitās“calmness, equanimity”
2. French · derived froméquanimité
3. English todayequanimity

From French équanimité, from Latin aequanimitās (“calmness, equanimity”), from aequus (“even; calm; fair”) + animus (“mind, soul”) + -itās. By surface analysis, equ- + anim(us) + -ity.