Where does “ʾbl” come from?

ʾbl (Middle Persian) comes from Proto-Iranian abráh, from Proto-Indo-Iranian abʰrás, from Proto-Indo-European n̥bʰrós, from Proto-Indo-European nebʰ- — to become damp, cloudy.

Ancestry of “ʾbl”, step by step

StepLanguageWordMeaning
1Proto-Iranianabráhcloud
2Proto-Indo-Iranianabʰráscloud, raincloud
3Proto-Indo-Europeann̥bʰrósrain-cloud, with semantic narrowing to rain,...
4Proto-Indo-Europeannebʰ-to become damp, cloudy

Words derived from “ʾbl”

Every word from Proto-Indo-European nebʰ- →Every word from Proto-Indo-European n̥bʰrós →Every word from Proto-Indo-Iranian abʰrás →