Where does “[[duka]], [[duhkha]]” come from?

[[duka]], [[duhkha]] (Old Javanese) comes from Sanskrit दुःख, from Sanskrit दुस्-, from Proto-Indo-Aryan duš-, from Proto-Indo-Iranian duš-, from Proto-Indo-European dus-, from Proto-Indo-European dēwǝ- — to fail, be behind, be lacking.

Ancestry of “[[duka]], [[duhkha]]”, step by step

StepLanguageWordMeaning
1Sanskritदुःखsorrow, distress, suffering, grief, misery,...
2Sanskritदुस्-ill-, mal
3Proto-Indo-Aryanduš-—
4Proto-Indo-Iranianduš-bad
5Proto-Indo-Europeandus-bad
6Proto-Indo-Europeandēwǝ-to fail, be behind, be lacking

Words derived from “[[duka]], [[duhkha]]”

Every word from Proto-Indo-European dēwǝ- →Every word from Sanskrit दुस्- →Every word from Proto-Indo-European dus- →