Serenity /(?)/
Se·ren·i·ty
Serenity
n.
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The quality or state of being serene; clearness and calmness; quietness; stillness; peace.
A general peace and serenity newly succeeded a general trouble.
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Calmness of mind; eveness of temper; undisturbed state; coolness; composure.
I can not see how any men should ever transgress those moral rules with confidence and serenity.