Evenness means an equality between two species, or to sets of variables in mathematics, so evenness of mind and temper would be a tranquility or peace between these two parts of your body.
A ten letter word with this meaning is Equanimity.
Definition: mental calmness, composure, and evenness of temper, especially in a difficult situation.
<span>His breeding, sir, hath been at my charge: I have ... My lord of Kent: remember him hereafter as my ... Asmuch as child e'er loved, or father found; ... all manner of so much I love you. CORDELIA. [Aside] What shall Cordelia do? Love, and be silent. LEAR ... And prize me at her worth. ... Return those duties backas are right fit
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The boy finds the girl and follows them
