Variant of serene
- clear; bright; unclouded: a serene sky
- not disturbed or troubled; calm, peaceful, tranquil, etc.
- exalted; high-ranking: used in certain royal titles: his Serene Highness
Origin: Classical Latin serenus ; from Indo-European an unverified form ksero-, dry (from source Classical Greek xēros, dry, Old High German serawēn, to dry out) ; from base an unverified form ksā-, to burn