What does "serene" mean?

Serene: Calm; placid; undisturbed; unruffled; as, a serene aspect; a serene soul. Milton. Note: In several countries of Europe, Serene is given as a tittle to princes and the members of their families; as, His Serene Highness. Drop serene. (Med.) See Amaurosis. Milton.

Additional senses

  1. 2.Serenity; clearness; calmness. [Poetic.] "The serene of heaven." Southey. To their master is denied To share their sweet serene. Young.
  2. 3.Etym: [F. serein evening dew or damp. See Serein.] Evening air; night chill. [Obs.] "Some serene blast me." B. Jonson.
  3. 4.To make serene. Heaven and earth, as if contending, vie To raise his being, and serene his soul. Thomson.

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