Where does “serein” come from?

serein (English) comes from French serein, from Old French serein, from Vulgar Latin seranum, from Latin sērus, from Proto-Italic swerjos, from Proto-Indo-European swer-yo-s, from Proto-Indo-European swer- — to ache; to fester; wound; injury.

serein (English): Light rainfall from a cloudless sky after sunset

Definitions

  1. Light rainfall from a cloudless sky after sunset

Ancestry of “serein”, step by step

StepLanguageWordMeaning
1Frenchsereinunclouded, clear; serene, calm, tranquil; serein
2Old Frenchsereinserene, calm, tranquil; evening
3Vulgar Latinseranum—
4Latinsēruslate, too late
5Proto-Italicswerjos—
6Proto-Indo-Europeanswer-yo-s—
7Proto-Indo-Europeanswer-to ache; to fester; wound; injury
Every word from Proto-Indo-European swer- →Every word from Proto-Indo-European swer-yo-s →Every word from Proto-Italic swerjos →