Where does “dirs-” come from?

dirs- (Proto-Balto-Slavic) comes from Proto-Indo-European dʰr̥s-u-, from Proto-Indo-European dʰers-, from Proto-Indo-European dʰer- — to support; to hold.

Ancestry of “dirs-”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeandʰr̥s-u-—
2Proto-Indo-Europeandʰers-to be bold, to dare
3Proto-Indo-Europeandʰer-to support; to hold

Words derived from “dirs-”

Every word from Proto-Indo-European dʰer- →Every word from Proto-Indo-European dʰers- →Every word from Proto-Indo-European dʰr̥s-u- →