Today we take a look at the word: Serenity
noun: serenity
  1. the state of being calm, peaceful, and untroubled.
    “an oasis of serenity amidst the bustling city”
    synonyms: calmness, calm, composure, tranquillity, peacefulness, peace of mind, peace,peaceableness, collectedness, poise, aplomb, self-possession, sangfroid,imperturbability, equanimity, equableness, ease, placidity, placidness; More

    antonyms: anxiety, agitation, disruption, cloudiness, storminess
late Middle English: from Old French serenite, from Latin serenitas, from serenus ‘clear, fair’ (serene).
Source: Wikipedia