Where does “rjasa” come from?

rjasa (Upper Sorbian) comes from Proto-Slavic ręsa, from Proto-Slavic ręditi, from Proto-Indo-European h₂er- — to fit, to fix, to put together.

rjasa (Upper Sorbian): duckweed

Definitions

  1. duckweed

Ancestry of “rjasa”, step by step

StepLanguageWordMeaning
1Proto-Slavicręsaedge, fringe; eyelashes; duckweed, turf
2Proto-Slavicręditito arrange
3Proto-Indo-Europeanh₂er-to fit, to fix, to put together
Every word from Proto-Indo-European h₂er- →Every word from Proto-Slavic ręditi →Every word from Proto-Slavic ręsa →