Where does “serão” come from?
serão (Portuguese) comes from Old Portuguese seran, 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.
serão (Portuguese): overtime; evening
Ancestry of “serão”, step by step