serene

adj

Etymology: From Middle English, borrowed from Latin serēnus (“clear, cloudless, untroubled”).

1. Calm, peaceful, unruffled.

   “She looked at her students with joviality and a serene mentality.”

   “Serene, smiling, enigmatic, she faced him with no fear whatever showing in her dark eyes. The clear light of the bright autumn morning had no terrors for youth and health like hers.”

2. Without worry or anxiety; unaffected by disturbance.

   “I took train and reached Wichita, where my active partner was awaiting me. He had just returned from the Medicine River, and reported everything serene.”

3. Fair and unclouded (as of the sky); clear; unobscured.

   “Now ſleeping flocks on their ſoft fleeces lie, / The moon, ſerene in glory, mounts the sky, […]”

   “Full many a gem of pureſt ray ſerene / The dark unfathom'd caves of ocean bear: […]”

4. Used as part of certain titles, originally to indicate sovereignty or independence.

   “Her Serene Highness”

name

1. A female given name from English. A rare variant of Serena.

   “The Prince according to the former token, / Which faire Serene to him delivered had, […]”

noun

Etymology: Borrowed from Middle French serein, from Old French serein (“evening”), from Vulgar Latin *serānum, from substantive use of sērum, neuter of sērus (“late”) + -ānus suffix.

1. A fine rain from a cloudless sky after sunset.

   “Some ſerene blaſt me, or dire lightning ſtrike / This my offending face.”

   “... Nor unwholesome serene shall From the moon's moist influence fall.”

verb

Etymology: From Middle English, borrowed from Latin serēnus (“clear, cloudless, untroubled”).

1. To make serene.

   “The Hoary Froſts, and Northern Blaſts take care / Thy muddy Bev'rage to ſerene, and drive / Præcipitant the baſer, ropy Lees.”

   “When heaven and earth, as if contending, vye / To raiſe his being, and ſerene his ſoul.”